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Otoport Lite Manual Issue 3

1. e A s 10 CHAPTER ONE Introduction Visually inspect the coupler tubes before use A blocked sound delivery tube may prevent the Otoport from achieving its target stimulation level and so prevent testing It may also attenuate certain frequencies and limit the number of pass bands A blocked microphone tube will prevent the Otoport from sensing the stimulus level in the ear and from detecting the OAE As a result the Otoport may apply a louder than normal sound to the ear All surfaces of the Otoport may be cleaned with an alcohol based wipe or cloth with antiseptic fluid Dry the device immediately with tissue Do not allow liquid to enter the instrument If additional hygienic protection is required clear plastic infection control sleeves designed to contain the Otoport during use are available from Otodynamics 2 1 2 1 a 2 1 6 2 1 22128 Otoport Lite 11 User Manual Getting started Otoport Lite case contents Note Otoport and accessories not shown to scale Take a few moments to familiarise yourself with your Otoport kit Otoport Lite handheld OAE instrument Soft fabric drawstring probe bag Q 7 3 Je Q 9 12 CHAPTER TWO Getting started 2 1 e PAi 2 1 9 2 1 h 21i Test cavity for probe checks Probe accessories see chapter 12 for further information ie Probe cable clip ee Sample probe coupler tubes a Spare
2. To print patient details and all test results for that patient select Print on the Patient Details screen 88 CHAPTER NINE Printing 923c Toprint patient details and the result of a specific test select the Results summary screen scroll through the different tests for the patient using the up and down arrow keys and select Print TEQAE Lf A TEOAE PASS u Any2Bands Bde OAE 12 308 OOOO Noise 3ga L 34 1 Jan 12 12 16 ADN BACK PRINT 924 Sample prints DAE Test result ELT NNN PATIENT DETAILS ID Notes PASS Name JA 0 0 8 11 Nou 2009 Gender Female Comments Left Ear TEDRE 9 8 dBSPL ID Notes PASS Technical details haB E cia eh TORR E rovocol Wide and Left Ear N Reject Med Noisy 0 Sell 37 Sun S7 TRAS PHE tabi 100 Repro 95 m Duration 35 User AD Noise 3 0 Set Detailed print Summary print 9 3 9 3 a 9 3 b 9 3 c 9 3 9 3 e Otoport Lite 89 User Manual The printing process If you are using the wired printing method ensure the printer is connected to the Otoport using the printing cable provided Connect the flat connector to the Otoport with the arrows facing upwards and the square connector to the back of the printer n O Taaa a a Printer cable socket The wireless printing method has a range of up to 10m in direct line of sight Itis recommended that the printing distance is reduced to 5m to help ensure robust communication Remain
3. 11 1 11 1 f 11 1 9 11 1 h Otoport Lite 101 User Manual Remove the tip from the probe and place the cavity on a flat surface Insert the probe into the test cavity at a 90 degree angle to the top of the cavity between the screws as shown below left Press the probe firmly into the cavity until the shoulder of the probe touches the top of the cavity When released the probe will rise a little to its natural position and the shoulder may no longer touch the cavity Inserting the probe at the wrong angle or with the probe head over one of the screws may result in incorrect test results Select OK to begin the Probe Test or Cancel to return to the Probe Menu screen The probe outputs sound at 1 2 and 4kHz via its loud speaker s There is one loud speaker in the UGS TEOAE probe and two in the UGD DPOAE probe The Otoport compares the response at each frequency against an absolute range and probe specific values stored on the probe connected Checking the probe response against the absolute range determines if the probe is OK for use Checking the probe response against the probe specific values is more sensitive and provides a warning if the response of the probe has changed Probe checks 102 CHAPTER ELEVEN Probe checks 11 1 1 11 1 1 a 11 1 1 b 11 1 1 c i Wg 11 1 1 Results The possible results of the test are Pass OK The levels recorded at all frequencies are within the
4. If a user has been assigned Administrator rights an A will be present in the right hand Status column of the table Edit user Select Edit to alter the details of a highlighted user Select Save to save changes to the user s details and return to the User List Select Delete to remove the selected user from the User List A confirmation message will appear at the top of the screen Select Yes to confirm the deletion or No to retain the user and return to the Edit User screen It is not possible to delete the default Admin user The message Cannot Delete User has tests in database will appear if the user has performed tests that are still present within the database It is necessary to delete all Patient Records from the device prior to deletion of users Note Patient Results should be downloaded to PC first c we 5 D m S o Oo 84 CHAPTER EIGHT Configuration 8 6 2 i Select Cancel at any time to discard changes and return to the User List 8 6 2 Settings 862k Select Settings to turn the Login facility On or Off 8 6 2 1 Select Save to save a change to the settings or Cancel to turn to the Users menu Otoport Lite 85 User Manual 9 Printing o1 Printer accessory 9 1 4 An Otoport mini printer is available as an optional accessory The printer is used to create a paper record of the OAE test results recorded on the Otoport The Otoport either communicates with the printer using B
5. It is the responsibility of the user to ensure that the pass criteria set meet their requirements DP stimulus calibration CALIBRATING Before starting the test the Otoport will calibrate the levels of the stimulus tones which are to be used in the test This is necessary to account for the acoustic properties of individual patients ear canals If the required levels cannot be reached then the Otoport will display the message Unable to calibrate Check probe fit and return to the checkfit screen If calibration fails check the probe fit and check that the probe coupler tubes are clear Excessive noise may inhibit calibration so ensure environmental noise levels are low Make sure a DP UGD grey probe is connected to the Otoport and not a TE UGS red probe Test 46 CHAPTER FIVE Test 5 3 1 c 5 3 1 d 5 3 1 e 5 3 2 5 3 2 a 3 2 b 5 3 2 C If calibration continues to fail regardless of the position of the probe in the ear it is likely that the probe has become blocked In this case inspect the probe coupler tubes and replace if necessary then run Probe Checks see chapter 11 to test the probe and Otoport performance Following Stimulus Calibration the OAE recording begins and data is collected With Neonate mode On the user is warned if the response from the probe indicates a large ear canal see 5 2 1 d graphic and section 8 3 5 A Probe out of ear of large cavity detected
6. Location 4 In Patient Facility Hospital CANCEL RECORDS SAVE Zid 2 1 a 24 00 2 7 8 2 7 8 a 2 7 9 a 2 1 9 b 2 7 9 c 2 7 10 2 7 10 a Otoport Lite 23 User Manual Deleting characters The bottom right hand Contrast Delete key is used as a delete key If the cursor is at the end of a row of characters press this key to delete the last character Left and right arrow keys can be used to scroll back through the text The selected blinking character can be replaced using the keypad data entry keys or deleted with the delete key Continue to press the delete key to erase characters to the right of the cursor Backlight The screen and keypad are backlit to assist in testing in dimly lit environments The backlight stays on for 7 seconds following any key press and remains on during testing The backlight can be configured see chapter 8 Configuration Stimulus and Noise OK indicators blue LEDs The two blue LEDs above the screen on the Otoport give an indication of whether stimulus and noise levels are acceptable for data collection The Stimulus LED is marked with an S It is lit when the stimulus level recorded by the probe microphone is within the expected range The Noise OK LED is marked with an N It is lit when the noise level recorded by the probe microphone is below the set noise reject level see chapter 8 Configuration Hard reset In the unlikely event that the Otoport fails t
7. Poor Probe Fit Er No Valid OAE Too Few Bands Stopped Too Soon Description The data collected has met the criteria set The optimum test setting will depend on your application see 8 3 Test settings The following results will only occur if a TEOAE Pass is not obtained The noisy data collected is three times greater than the low noise data collected Probe movement has been detected The data collected has not met the set pass criteria and the test conditions were acceptable Insufficient bands meet their pass criteria The test was ended manually before the required minimum amount of data has been collected 5 3 5 3 a 5 3 b 5 3 1 5 3 1 a 5 3 1 b Otoport Lite 45 User Manual DP Test DPOAE model During testing the Otoport plays pairs of tones at different frequencies into the ear and records the response The OAE signal is very small and difficult to distinguish from the noise made by other sounds in the room and by the patient The longer the Otoport records for the easier it is to distinguish the OAE signal from the noise The Otoport looks at the ratio of the OAE signal to the noise this is known as the Signal to Noise Ratio or SNR The Otoport measures the SNR in a number of different frequencies The pass criteria is set in the Configuration area see chapter 8 Configuration The default pass criteria is an SNR of 6dB and a minimum signal of gt 5dBSPL in at least three frequency bands
8. Probe checks should be carried out on a weekly basis There are four different probe checks described below The Probe Test is initiated from within the Configuration menu the Cavity Occlusion and Real Ear tests involve running a standard TEOAE or DPOAE test Probe checks 100 CHAPTER ELEVEN Probe checks n Probe test CONFIGURATION PROBE UGD C 108003 A E Probe Test L NEY ri LD NEW 2 Test Settings 76 4175 7176 sve A gt KHz tle 78 4 78 5 77 91 atd 6 7 75 876 776 10 3 Date amp Time 4 System 5 Users BACK SAVE RETEST 11 1 4 Probe Test is an option accessed from the configuration menu see chapter 8 Configuration 11 1 b A Probe Test should be performed regularly to monitor the calibration of the probe s output stimulus level and microphone response 11 1 Note Probes supplied with a new Otocheck system are tested with the system and Probe Test levels are stored These levels form a baseline to compare future tests against in order to monitor any calibration drift It is not necessary to save a new baseline level for these probes Replacement probes supplied should be tested with your Otocheck system and new Probe Test results saved as a baseline reference see 11 1 1 below itid On selection of Probe Test the message Place Probe into Otodynamics Test Cavity Press OK to begin test will be displayed 0 Place probe into Otodynamics test cavity Press OK to begin test
9. The Rapid mode is appropriate for secure detection of the presence of OAEs at a set number of frequencies for screening purposes A good Signal to Noise Ratio SNR in this mode indicates high confidence level that an OAE is present The Standard mode can also be used for screening but only in quiet test conditions Tests will take longer than the Rapid mode and the confidence level of the result will exceed that needed for screening Otodynamics does not recommend the Rapid mode for clinical measurements as the dBSPL accuracy may not be sufficient to quantify changes over time Further details of the Noise Modes are included in chapter 19 Mode of operation 8 4 8 4 a 8 4 b 8 4 c 8 4 d 8 4 e 8 4 f Otoport Lite 75 User Manual Date and time DATE amp TIME 10 46 24Hr 01 Feb 2012 dd Mmm yyyy The date and time set on the device can be altered in the Date amp Time screen When the Date field is highlighted press the right arrow key to access the calendar pop up table By default the day will be highlighted first and can be altered using the up and down arrow keys Continue to use the left and right arrow keys to jump between the Day Month Year and the up and down arrow keys to select the required date The date Format can be changed between dd Mmm yyyy and mm dd yyyy or dd mm yyyy via the choice bar Select Save to set the current date and time settings and return to the Configuration sc
10. 9 142 CHAPTER TWENTY ONE Technical specifications Guidance and manufacturer s declaration electromagnetic immunity The Otoport is intended for use in the electromagnetic environment specified below The customer or the user of the Otoport should ensure that it is used in such an environment Immunity IEC 60601 Compliance Electromagnetic environment test test level level guidance Portable and mobile RF communications equipment should be used no closer to any part of the Otoport including cables than the recommended separation distance calculated from the equation applicable to the frequency of the transmitter Recommended separation distance Conducted RF 3 Vrms 3 Vrms d 1 2 P IEC 61000 4 6 150 kHz to 80 MHz Radiated RF 3 V m 3 V m d 1 2VP 80 MHz to 800 MHz IEC 61000 4 3 80 MHz d 2 3 P 800 MHz to 2 5 GHz to 2 5 GHz where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer and d is the recommended separation distance in metres m Field strengths from fixed RF transmitters as determined by an electromagnetic site survey should be less than the compliance level in each frequency range Interference may occur in the vicinity of equipment marked with the following symbol Notes 1 At 80 MHz and 800 MHz the higher frequency range applies 2 These guidelines may not apply in all situations Electromagnetic propagation is affect
11. CANCEL CHECKFIT START Test screen The Otoport looks at the ratio of the OAE signal to the noise this is known as the Signal to Noise Ratio or SNR The Otoport measures the SNR in a number of different frequencies The display shows a series of small circles each representing the SNR recorded at a particular DP frequency The numbers below the circles indicate the F2 frequency in kHz The pass criteria are set in the Configuration area see chapter 8 Configuration The default pass criteria are an SNR of 6dB a minimum signal of gt 5dBSPL and at least 1 28s of data collected in at least three frequency bands 5 3 2 0 5 3 2 e 5 3 2 f 5 3 2 g 5 3 2 h 5 3 2 i 5 3 2 5 3 3 5 3 3 a 5 3 3 b 5 3 3 c 5 3 3 d 5 3 3 e Otoport Lite 47 User Manual It is the responsibility of the user to ensure that the pass criteria set meet their requirements Noise level indicator A Noise Level Indicator is shown on the right of the Checkfit screen The bar moves in response to changes in noise For good testing conditions the bar should be consistently below the Noise Reject Level which is represented by the horizontal line across the Noise Level Indicator The bar is filled red if the level is above the threshold and green if it is below The noise level shown is calculated from the peak sound level recorded within each response window The letter below the indicator represents the noise reject threshold l
12. D m S o Oo 18 CHAPTER EIGHT Configuration 8 5 3 8 5 3 a 8 5 3 b 8 5 3 c 8 5 3 8 5 3 e Battery BATTERY Charge o7 Time 529 min Health g1 3 Voltage 4 0V ICECECETI BACK CONDITION The Battery screen provides information on the current battery status The total Battery Power remaining is displayed as a percentage and as an approximate operation time The calculated time is only an approximate indication as the power requirements will vary depending on the mode of operation The Battery graphic on the right of the screen conveys the total remaining Battery Power The battery segments are shaded according to the following criteria Segments Displayed Battery Power 95 100 75 94 55 74 40 54 30 39 20 29 1 10 19 0 lt 10 NM AJ aI OIN The Battery Voltage and Health values are provided as a diagnostic tool at the bottom of the screen The battery graphic is also displayed on the Logo screen to inform the user of the Battery Power every time the device is switched on Select condition to discharge the Otoport battery See chapter 15 Otoport power for more information 8 5 4 8 5 4 a 8 5 4 6 8 5 4 c 8 5 4 d 8 5 4 e 8 5 4 f 8 5 4 9 8 5 4 h 8 5 4 i 8 5 4 j 8 5 4 k Otoport Lite 79 User Manual Setup SETUP Quick Save Print Manual End Print Test Print type Detailed T CANCEL SAVE Quick Save If Quick Save is
13. scroll down to the last line which will be empty then select Add If your Otoport has RFID or Bluetooth facilities you may enter patient details by selecting Scan Complete the required details The ID Notes and Name fields are prefilled but can be over written PATIENT DETAILS ID Motes OGPM2100 Name Brooks D O B 01 Feb 2012 a Male gt BACK SAVE TEST 60 CHAPTER SIX Worklist 6 1 c 6 1 d 6 2 6 2 a 6 3 6 3 a When details are complete select Save to save the details to the Worklist Test to run a test on this patient or Back to discard these patient details Up to 50 patients may be added to the Worklist Testing from the worklist WORK LIST wa NAME ID INOTES Roberts OGPMiVoO2 OGPM1IVOS OGPM1VO04 DELETE DETAILS TEST Scroll to the required patient Select Test to begin testing this patient When a test has been saved to a patient those details are removed from the Worklist Editing details Scroll to the required patient Select Details to edit The options available are the same as when adding a patient 6 4 6 4 a 6 4 b Otoport Lite 61 User Manual Deleting patients Scroll to the required patient Select Delete to remove CONFIRM DELETE Select Yes to delete the selected patient from the worklist Select All to delete all of the patients from the worklist Select No to return to the Worklist without deleting any patient details 62 CHAPTER SIX Workl
14. 2 Electromagnetic Compatibility 21 3 EN60645 3 conformance notes 21 4 Symbol explanations 22 Index 126 126 126 126 128 129 130 131 132 132 134 135 135 139 144 146 148 Otoport Lite 7 User Manual 2 er 3 e d ww 8 CHAPTER ONE Introduction 1 1 0 b 1 0 d Introduction The Otoport provides high quality OAE measurement features in a compact handheld format Different models are available to perform either TEOAE or DPOAE tests The Otoport is simple to use and with powerful measurement features performs an automatic analysis of cochlear status within seconds Customisable pass criteria control the test s automatic stop mechanism and a clear Pass Refer indication is provided The Otoport s impressive list of features includes TEOAE Quickscreen or DPOAE testing Ultra fast interactive graphic display ILO Gold Standard data format Frequency band analysis Cell phone type keypad 500 record secure database Long battery life Options e Wireless Printer e Docking Station RFID Scanner e Barcode Scanner 1 1 b 1 1 d 1 1 f 1 1 9 a Otoport Lite 9 User Manual General use precautions s TRAINING REQUIRED The Otoport pass criteria are set in the Configuration area see chapter 8 Configuration Itis the responsibility of the user to ensure that the pass criteria set meet their requirements Measuring OAEs requires that
15. 36N Jan 27 2012 12 01 53 OO00007 72EFO OP UGB C108003 8 5 5 e The About screen provides information relating to the Otoport s identification and mode of operation The firmware revision number and issue date is stated together with the unit s unique hardware ID If a probe is connected the Probe ID will also be displayed for reference c ad 6 5 D m S Oo 82 CHAPTER EIGHT Configuration 8 6 8 6 a 8 6 b 8 6 c 8 6 d 8 6 1 8 6 1 a 8 6 1 b Users 1 Add New User 2 View Users 3 Settings Select Add New User to enter details of a new user and save to the User List Adding users to the Otoport allows test results to be attributed to individuals and allows password control of areas such as test setup Select View Users to review edit or delete users from the current User List Select Settings to turn Login on or off Select Back to return to the Configuration Menu screen Add New User To add a New User complete the field entries shown on the New User screen The following table describes the field choices available Field Name User ID Password Admin Description Max No Characters User s name that appears 8 at Login The user s unique 3 identification capitalised only This is attached to a test record when saved to the database An alphanumeric password 8 required for secure login capitalised only optional Select Yes to give the n
16. 8 4 8 5 8 6 9 1 92 9 3 9 4 9 5 9 6 9 7 9 8 Patient list Configuration Configuration menu Probe test Test settings Date and time System Users Printing Printer accessory When you can print The printing process Printer fault detection Printer light summary Paper Charging the printer Changing the battery 10 11 12 13 14 15 scanning 10 1 Scanning facility 10 2 Scanner types 10 3 When to use the scanners Probe checks 11 1 Probe test 11 2 Cavity test 11 3 Occlusion test 11 4 Real ear test Probe tips and accessories 121 Probe and service accessories 12 2 Probe cable clip 12 3 Probe tips Probe care 13 1 Cleaning 13 2 Changing probe coupler tubes 13 3 Probes safety note Care of the Otoport Lite 14 1 Use of the Otoport and cleaning Otoport Lite power 15 1 Battery life 15 2 Initial charge 153 Standby 154 Battery charge 15 5 Charging the Otoport 15 6 Conditioning the Otoport battery 95 95 97 99 100 105 106 107 108 108 109 110 113 113 113 115 116 116 118 118 118 119 120 122 125 Otoport Lite 5 User Manual i 16 Troubleshooting 16 1 Otoport lock up 16 2 Switch on 16 3 System details 164 Instrument fault message 16 5 Hardware fault messages 17 Training 18 Obtaining service 19 Calibration 20 Mode of operation 20 1 TEOAE model 20 2 DPOAE model 21 Technical specifications 21 1 General 21
17. Check the subject has no middle or outer ear problems such as a cold or wax blockage which might prevent OAE recording e Check a good probe fit has been achieved e Check that the probe is not blocked e Check the probe still passes the probe calibration test see above e Try recording emissions from another subject If you are still unable to achieve a Real Ear OK result then if the resources are available try recording with a different probe or with a different Otoport If the problem persists contact your dealer or Otodynamics Probe checks 108 CHAPTER TWELVE Probe tips and accessories 12 12 1 12 1 a 12 1 b 12 1 c 12 1 d Probe tips and accessories Probe and service accessories Your kit will include either a TEOAE or DPOAE probe with appropriate accessories and sample probe tips depending on the Otoport model purchased UGS TEOAE probe red or UGD DPOAE probe grey with screw locking connector see 2 8 Connecting the probe TPC Coupler Tubes for UGS probe or DPC or UGD See chapter 13 Probe care for information on changing coupler tubes BGS Body amp Lid for UGS probe or BGD Body amp Lid for UGD probe Otoport Lite 109 User Manual 22 Probe cable clip 12 2 4 The probe cable clip is provided to aid the practical aspects of positioning and securing the probe cable during OAE testing Using the probe cable clip can improve your test times by reducing noise from cabl
18. Collateral standard programmable electrical medical systems UL 60601 1 Medical Electrical Equipment Part 1 General Requirements for Safety CSA C22 601 Medical Electrical Equipment 21 2 Otoport Lite 139 User Manual Electromagnetic Compatibility The Otoport should be put into service according to the EMC Electromagnetic Compatibility information provided here Portable and mobile RF Radio Frequency communications equipment can affect the operation of the Otoport In particular mobile telephones cellphones should not be operated within 3 3m of the Otoport The use of probes chargers and connection cables other than those supplied by Otodynamics Ltd and specifically for use with the Otoport may result in increased emissions or decreased immunity of the Otoport Guidance and manufacturer s declaration electromagnetic emissions The Otoport is intended for use in the electromagnetic environment specified below The user of the Otoport should ensure that it is used in such an environment Emissions test Compliance Electromagnetic environment guidance RF emissions The Otoport uses RF energy only for CISPR 11 its internal function Therefore its RF emissions are very low and are not likely to cause any interference in nearby equipment RF emissions Class B The Otoport is suitable for use in all CISPR 11 establishments including domestic establishments and those directly connected to the publ
19. absolute range and within 3dB of the probe specific values Fail One or more of the levels recorded are outside the absolute range specified for the probe If a Fail is shown on screen inspect the probe coupler tubes for debris replace the coupler if necessary and repeat the Probe Test by selecting Retest ensuring the ear piece is firmly inserted in the test cavity If the test continues to fail there may be a fault with the probe or system Contact your dealer or Otodynamics for advice i a 11 1 1 g 11 1 1 h 11 1 1 i 14145 Otoport Lite 103 User Manual Query The levels recorded at all frequencies are with the absolute range but one or more frequencies is more than 3 dB of the probe specific values If a Query is shown inspect the probe coupler tubes for debris replace the coupler if necessary and repeat the Probe Test by selecting Retest ensuring the ear piece is firmly inserted in the test cavity A Query result indicates that there have been changes in the probe but that these changes are not large enough to invalidate testing It may be possible for the probe calibration to be adjusted if the probe is returned to Otodynamics Noisy There was significant noise during the calibration test This noise may have influence the levels recorded so a Retest should be performed Select Back to exit the probe test and return to the Probe Menu screen Probe checks 104 CHAPTER ELEVEN Probe checks 1
20. been contaminated The body and lid should be replaced if contaminated Visually check the ear piece for signs of dirt before each test Otoport Lite 117 User Manual 14 1 Before fitting each tip ensure the sound tubes are carefully examined for any sign of debris that may have entered them Replace any part of the probe ear piece as necessary See chapter 13 Probe care for details 14 1 Ensure your hands are cleaned thoroughly between each patient tested 14 14 Clean the Otoport each day before a testing session or according to local requirements Ensure the Otoport is cleaned if it becomes contaminated Clean surfaces of the Otoport with an alcohol based sterile wipe or cloth and antiseptic fluid Dry the Otoport with tissue immediately afterwards Do not allow liquid to enter the instrument and do not immerse in fluid Do not allow liquid to come into contact with the connection sockets Do no poke any materials into either the probe or charger pc cable sockets 14 1 9 If additional hygienic protection is required use the Otoport in an infection control sleeve This can also be cleaned with a sterile wipe or cloth with antiseptic fluid The sleeves are disposable so should be replaced weekly or after approximately every 50 tests bm Q Q e ar O Q y e Q S 118 CHAPTER FIFTEEN Otoport power 15 15 0 a 15 1 15 1 a 15 2 15 2 a Otoport Lite power Important Note Only cha
21. fault If this message is displayed turn the unit off disconnect the probe and then turn it back on If the message is consistently displayed with the probe disconnected then contact Otodynamics 17 17 0 a 17 0 b 17 0 c 17 0 d 17 0 e Otoport Lite 129 User Manual Training It is important that the operator of the Otoport is properly trained before using the instrument The manual should be read before use and note taken of the sections marked with the training required symbol TRAINING REQUIRED Where the training symbol is directly beneath a chapter title it indicates that training is required for everything within the chapter Where the symbol appears beneath a section heading it indicates that training is required for that section only Training in the UK is provided by Otodynamics Ltd Training elsewhere is via an approved dealer who has been trained by Otodynamics Training on OAEs and use of the equipment may also be provided by previously trained staff and qualified audiologists Ensure your local policy for infection control is followed as well as reading the recommendations in this manual see section 20 1 Use of the Otoport and cleaning If a problem occurs during the operation of your Otoport or Otolink software or a message or warning appears that you don t understand make note of the issue and messages provided Refer these to your department lead or directly to Otodynamics or your dealer
22. for support 130 CHAPTER EIGHTEEN Obtaining service 18 18 0 a 18 0 b 18 0 c 18 0 d Obtaining service Otodynamics or its authorised distributor will replace or service free of charge this Otoport for a period of 12 months from the date of purchase where the fault is not associated with misuse Servicing after that period will be provided at reasonable cost Probes failing because of faulty construction will be replaced subject to inspection Probes must be treated with care Do not allow cleaning fluid to enter the sound tubes When sending equipment to Otodynamics for service or repair please ensure all items particularly the OAE instrument and probe are clean and free from contamination Otodynamics cannot guarantee the equipment will be contamination free when returned to you and suggest that it is cleaned in accordance with your infection control protocols before being put back into use Please contact your distributor or Otodynamics for advice before returning an item for repair You will be asked for your instrument serial number which can be found on the back on the Otoport Otodynamics Ltd 30 38 Beaconsfield Road Hatfield Hertfordshire AL10 8BB UK Tel 44 1707 267540 Fax 44 1707 262327 E mail support otodynamics com www otodynamics com 19 19 0 a 19 0 b 19 0 c Otoport Lite 131 User Manual Calibration The Otoport is a precision instrument designed to make accurate me
23. only does this pose a contamination risk but OAEs cannot be recorded through fluid In the event of an accident with body fluids the tip coupler tubes and probe body must be changed Otoport Lite 113 User Manual 13 Probe care S TRAINING REQUIRED 31 Cleaning 13 1 a The following is the suggested method of cleaning an Otodynamics probe It should be noted that the probe is a precision assembly and as such care should be taken throughout in its handling and cleaning 13 1 b Cable The cable may be cleaned with antiseptic fluid or wipes 13 1 Probe casing The probe casing may be cleaned using antiseptic wipes and dried with a tissue immediately afterwards Do not allow liquids to enter the sound tubes 13 1 d Coupler assembly Each coupler assembly has two sound tubes These are protected from ingress of foreign materials by wax guards in the tubes and by the disposable probe tip There is a loudspeaker at the end of one tube and a microphone at the end of the other Cleaning solution must not penetrate the tubes 2 Changing probe coupler tubes 13 2 a The probe has sound tubes combined into a single coupler assembly that can easily be replaced at regular intervals or when contaminated Q in s 2 e in Bo 114 CHAPTER THIRTEEN Probe care 13 2 1 13 2 1 a 13 2 2 13 2 2 a 13 2 3 Disassembling the probe First unplug the probe from the instrument Remove the tip and t
24. referred to as waveforms A and B Otoport Lite 133 User Manual Signal and noise calculation Measures of signal and noise levels are based on the correlation and differences between waveforms A and B Stimulus repetition rate One stimulus every 13ms approximately 80 stims per second Response window 2 5 12 5 ms or 4 10ms after start of stimulus Cosine filtered with rise and fall time of 2ms Response frequency bands Half octave centres at 1 1 4 2 2 8 and 4kHz Response frequency range 841 4757Hz Microphone input filter 1189 4757Hz The attenuation at these frequencies is 3dB Attenuation increases by 80dB decade below and 40dB decade above these frequencies Memory capacity Patients 500 Tests per patient 256 Total tests 500 e Pa S i Q e m e 3 Le e 134 CHAPTER TWENTY Mode of operation 20 2 DPOAE model Parameter Description Checkfit stimulus 80us positive broadband square wave pulse with an intensity of 64dB pe peak equivalent in a 1cc cavity Sample rate 25 6kHz Sample buffer 80ms gives 2048 points FFT frequency bin 25Hz DP Noise calculation DP noise from the five spectral points above and the five points below the DP frequency In the Rapid noise mode the mean of these points gives the noise level In the Standard noise mode the mean of these points plus two standard deviations gives the noise level Noise rejection calculatio
25. remaining If the central soft key is pressed an E will be displayed and the test will run until autostop criteria are met it is manually stopped or the absolute limit for testing is reached Start With Start set to On default the testing will proceed from Checkfit to Test as soon as the Otoport detects a stable probe fit without the need for the user to select Start With Start set to Off the user must initiate the test by selecting Start when the probe fit and test conditions are satisfactory Irrespective of the Start setting the Start key is available in order that the user can initiate a test DP Stims DP only This sets the target stimulus levels for the tones L1 and L2 that are represented during the test The options available are 60 50 60 55 65 50 65 55 70 70 Higher intensities give a less sensitive hearing screen but may be necessary to record a response in older patients c ad 5 D m S o Oo 74 CHAPTER EIGHT Configuration s310 Noise mode 8 3 10 a Noise mode sets the method by which the noise floor in DP tests is 8 3 10 b 8 3 10 c 8 3 10 d 8 3 10 e 8 3 10 f calculated The Standard mode implements a noise floor which is appropriate for clinical measurements in which high accuracy in terms of the dBSPL of the OAE is required at each frequency A good Signal to Noise Ratio SNR in this mode indicates that a high accuracy of measurement has been reached
26. test time 300 seconds Max low noise NLo 260 sweeps of 16 stimulus presentations sweeps averaged Ring reject 20dB Max ratio of stimulus peak to the level 3ms after stimulus presentation Stimulus ring can hamper accurate OAE measurement Input filter 1189Hz 475 7Hz or 1600 3200Hz narrow mode only The attenuation at these frequencies is 3dB Attenuation increases by 80dB decade below and 40dB decade above these frequencies 8 3 3 g 8 3 4 8 3 4 a 8 3 4 6 8 3 4 c Otoport Lite 71 User Manual The default setting is Any 2 Bands However it is recommended that you carefully choose pass criteria which suit your particular screening program Configurable test parameters Name Any 2 Any 3 Any 4 Wide Narrow Min pass bands 2 3 4 None None Min total wide band SNR None None None 6dB 6dB Min SNR per pass band 6dB 6dB 6dB None None Filter Hz 1189 4757 1189 4757 1189 4757 1189 4757 1600 3200 Response Window ms 2 5 12 5 2 5 12 5 2 5 12 5 2 5 12 5 4 10 Mode DPOAE Mode sets the pass criteria for screening The Any 2 Bands Any 3 Bands and Any 4 Bands settings require a 6dB SNR and a minimum signal level of SdBSPL in each of the stated number of half octave frequency bands to meet the pass criteria The default setting is Any 3 Bands However it is recommended that pass criteria is carefully chosen to suit the particular OAE testing programme Fixed test parameters Min band signal 5dBSPL Max test
27. the front of the printer has a number of colour combinations which indicate various conditions Constant green Normal operation running on battery power Flashing green The printer is storing print information spooling that cannot be printed at the time e g no paper or printer lid open Flashing green orange Battery is being charged Red Low battery or other problem No light Unit is in sleep mode has a flat battery or the battery is not connected 92 CHAPTER NINE Printing 9 6 9 6 a 9 6 b 9 6 c 9 6 d 9 6 e Paper When the printer is switched on the button provides a paper feed function A double press of the button will initiate a test print The printer is supplied with spare paper rolls To change the printer roll pull the lid release catch 1 forwards with your thumb and the paper roll lid will spring open Unwind a small amount of paper from the roll Insert the new roll 2 ensuring the paper will pass through the paper feed 3 and close the cover with a click After loading check that the paper advances properly using the paper feed function and tear off any excess by pulling the paper sharply towards you across the serrated tear bar In the event of a jam or other paper loading problem release the lid and straighten the paper before closing again Self adhesive paper rolls are also available and may be used in the same way as standard paper but can be stuck to y
28. there are other saved test records for this patient The left and right arrow indicators display the Patient Details for this patient Select Print to print an individual test record Select Back at any time to exit the test summary screen and return to the Patient List to review tests of an alternative patient N xo i 0 0 x 66 CHAPTER SEVEN Records TEOAE test summary screen No of Test saved to Test type the patient record Patients Name Test Result Stimulus level Ear Tested TEOAE R Right or L Left gt ae ae Westie PASS Band Pass Indicators Paean kw showing which bands achieved their pass 1152 3 4 criteria not shown if Total OAE signal 31 Jan ADN Ue ae is Wide level ABSPL and or Narrow Time of Test Total noise User ID level ABSPL Date of Test DPOAE test summary screen Test type Patients Name yP Test Result No of Test saved to Brown the patient record DPOAE DPOAE PASS Ear Tested a ANY3BANDS 65 5508 Stimulus Levels R Right or L Left Pass Criteria User ID Total OAE signal level ABSPL Band Pass Indicators Date of Test dots showing which Time of Test frequency bands achieved their pass Test Duration criteria 8 1 8 1 a 8 1 b 8 1 c 8 1 d 8 1 e 8 1 f 8 1 9 8 2 8 2 a Configuration TRAINING REQUIRED CONFIGURATION 1 Probe Test 2 Test Settings 3 Date amp Time 4 System Configuration menu Otoport Lite 67 User Ma
29. 1 1 1 k 11 1 1 11 1 1 m 11 1 1 n 11 1 1 0 11 1 1 p 11 1 1 q Details PROBE UGD C108003 A B OLO NEW OLD NEW 75 4 75 776 575 80 Madera 3 1 78 478 577 90 Maca 76 7 75 8 76 7 78 1 BACK SAVE RETEST The full test result can be viewed by selecting Details The details screen shows the levels recorded from the probe loud speaker at each frequency tested The NEW column shows the levels just recorded and the OLD results are the levels that are stored in the probe Results are given for each frequency tested Pass Tick Check mark The NEW and OLD Stored data for each of the two channels are within 3dB and are within the absolute limits Query Question mark Values differ by more than 3dB The NEW and OLD levels are highlighted Fail Cross X Values are outside the absolute range The NEW level only is highlighted The 1 2 and 4kHz values may not be stored in the probe if a new probe is being used with the system To save new data run a Probe Test record the values for each frequency and repeat by selecting Retest Check that the values from two sequential tests are within 0 5dB before selecting Save Save is only available to admin users It is not available if the test was noisy or if the levels were outside the absolute range On selecting Save the screen title Overwrite Stored will be shown highlighted Select Yes to save the new data or No to keep the curren
30. 133 Response window 133 Result 58 Results 65 RFID scanning 96 Ringing 37 S Sample buffer 134 Sample rate 134 Save 53 Scanner 16 Scanning 95 Select Ear 54 Serial number 16 Service 130 Signal and noise calculation 133 Speaker 15 Standby 119 Start 73 Stimulus 132 Stimulus Adjustment 37 39 Stimulus and Noise OK indicators 37 Stimulus frequencies F2 134 Stimulus LED 23 Stimulus pattern 132 Stimulus repetition rate 133 Switch on 27 Symbol explanations 146 System 76 77 System details 126 T Test Result 44 49 Test screen 40 46 Test settings 68 Test timeout 42 47 TE Test 38 Tips 110 Tip selection 32 Too Few Bands 44 49 TPC 108 Training 129 Otoport Lite 151 User Manual U UGS 108 Up down left right navigation buttons 15 User List 83 Users 82 W Waveform sample rate 132 Worklist 80 152 CHAPTER TWENTY TWO Index
31. 14 0 b 14 1 14 1 a 14 1 b 14 1 c Care of the Otoport Lite TRAINING REQUIRED The Otoport is robustly constructed but is a precision instrument so should be handled with care Be careful when connecting the probe charger PC cable or printer cable e Do not drop the Otoport e Do not leave in strong sunlight e Do not expose to high temperatures e Do not touch the connector socket pins by hand e Do not force the connection of the probe or charger PC cable printer cable Use of the Otoport and cleaning The following is a suggested cleaning method for the Otoport and probe The Otoport and accessories are precision assemblies so care should be taken throughout handling and cleaning Other than the probe ear piece and cable the Otoport hardware should not come into contact with the patient being tested Otodynamics probe tips are disposable and for single use only A new tip should be used for each ear tested The tip protrudes 0 5mm beyond the end of the probe coupler to prevent contact of the sound tubes with the patient Between patients wipe the probe ear piece and cable with an alcohol based sterile wipe or cloth and antiseptic fluid Dry the assembly with tissue immediately afterwards and do not let liquid pass down the coupler sound tubes The probe ear piece is serviceable and its body lid and coupler tubes can be replaced The coupler tubes should be replaced weekly or after 20 40 tests or if they have
32. 5 1 1 b 5 1 1 c 5 1 1 d 5 1 1 e 5 1 1 f 5 1 1 g 5 1 1 h 5 1 1 i Checkfit Checkfit display CHECKFIT It is important to perform a test in the appropriate conditions The Checkfit screen allows a user to assess the testing environment Conditions such as high ambient noise poor fit of the probe in the ear including leaks and blocked probes can be detected before starting the test Excessive noise or a poor probe fit may mean that the test cannot be performed or that the quality of data collected may be too low for an accurate test result to be determined Fit Size Indicator The Checkfit screen shows a Fit Size Indicator this shows a series of ears of increasing size indicating increasing ear canal volumes The size of ear canal detected in Checkfit is indicated by an arrow During Checkfit the Otoport repeatedly plays a click at a fixed level and records the sound level this click produces in the ear The sound level recorded depends on the fit of the probe and the size of the ear canal in which the probe is inserted Ear canal size increases from birth to adulthood So given a good probe fit the sound level recorded correlates with the age of the patient For example if the arrow is below the smallest ear this indicates that the sound level recorded is that which would be expected from a small ear canal You would expect this if you were testing a baby Individual ear canals vary considerably in size so the
33. 5 cycles for 5 cycles IEC 61000 4 11 70 Ur 70 UT 30 dip in Ut 30 dip in Ur for 25 cycles for 25 cycles lt 5 Ur lt 5 UI gt 95 dip in Ut gt 95 dip in Urs for5s for5s Power frequency 3 A m 3 A m 50 60 Hz magnetic field IEC 61000 4 8 Electromagnetic environment guidance Floors should be wood concrete or ceramic tile If floors are covered with synthetic material the relative humidity should be at least 30 Mains power quality should be that of a typical commercial or hospital environment Mains power quality should be that of a typical commercial or hospital environment Mains power quality should be that of a typical commercial or hospital environment If the user of the Otoport requires continued operation during power mains interruptions it is recommended that the Otoport be powered from an uninterruptible power supply or a battery Power frequency magnetic fields should be at levels characteristic of a typical location in a typical commercial or hospital environment NOTE Uz is the a c mains voltage prior to application of the test level Otoport Lite 141 User Manual The following functions of the Otoport are deemed essential performance and were tested for immunity in compliance with IEC60601 1 2 a The collection of Otoacoustic Emissions OAEs b The retention of user settings and test results a G Q G 2 N s
34. 7 3 Par ov 22 CHAPTER TWO Getting started 200 2 7 5 a 2 7 5 b 2 7 5 C 2 7 5 d 2 7 5 e 2 7 6 a Entering dates ENTER DETAILS ENTER DETAILS ID Notes OGPM1V01 ID Notes OGPM1V01 _ Dec 2011 D O B dd Mmm Yyyy AD Eig Jan Gender i NotGiven CANCEL RECORDS SAVE A right arrow symbol is shown at the end of a date field When the field is highlighted press the right arrow key to access the calendar pop up table The day will be highlighted first and can be altered using the up and down arrow keys Continue to use the left and right arrow keys to jump between the Day Month Year and the up and down arrow keys to select the required date Select Insert to accept the date displayed or Cancel to ignore the changes If the date has not been edited it will remain as dd Mmm yyy by default For Date of Birth entry D O B the Otoport will not permit entry of a future date Invalid D O B will be displayed briefly at the top of the screen then the date of birth will revert to today s date Re edit and confirm the D O B if necessary Choice bars Left and right arrow keys are used to move through choice bar options For example when entering patient details in the Gender field pressing the right arrow key will rotate the selected option between Not Given Male Female and Unknown Choice bars options are enclosed by arrow graphics ENTER DETAILS D O B 02 Jan 2012 Gender 4 NotGiven
35. Cancel the test In these circumstances Otodynamics recommends that the test is cancelled Efforts should then be made to improve the probe fit check the probe coupler tubes are clear and improve the test environment If adjustment continues to fail regardless of the position of the probe in the ear it is likely that the probe has become blocked In this case inspect the probe coupler tubes and replace if necessary then run probe checks see chapter 11 Probe Checks to test the probe and Otoport performance If stimulus adjustment is still unsuccessful continuing the test may provide useful results but it is likely that the stimulus level will be incorrect This will affect the level of OAE recorded With Neonate mode On the user is warned if the response from the probe indicates a large ear canal as shown below see also section 8 3 5 a Probe out of ear or large cavity detected CANCEL CHECKFIT START Test 40 CHAPTER FIVE Test 5 2 2 5 2 2 a 5 2 2 5 2 2 C 5 2 2 d 5 2 2 e Test screens The test screen display depends upon the display option set from the Configuration menu see chapter 8 Configuration The default display is a simple One circle view One circle TE TEST In the One circle display a single circle represents progress towards meeting the pass criteria The level of green displayed within the circle represents the strength of the OAE detected compared with the level of nois
36. Lo Sweeps NLo sweeps are recordings made with a noise level below the rejection threshold is reached This is a representation of the amount of good data sweeps required before a No valid OAE result can be given Test timeout If a test has not met the set pass criteria and the noise is consistently above the Noise Reject Threshold Level so that the Maximum NLo Sweeps cannot be achieved then the test will stop after 300 seconds regardless of the amount of good data collected This is to prevent overexposure of stimulus in an ear and to limit the test time to allow for reassessment of the ambient noise and of probe fit before a retest Manual end Selecting End at any time will stop the test 5 2 3 5 2 0 i Otoport Lite 43 User Manual Pausing and cancelling the test CANCEL TEST KHE M CHECEFIT YES You may wish to pause a test for instance during periods of noise When the test is paused it is possible to cancel the test and discard the data Select Cancel to pause the test Select Yes to end the test and discard the data No to resume the test and Checkfit to restart the test at the Checkfit stage Test 44 CHAPTER FIVE Test 5 2 4 5 2 4 a Test results The following table lists all possible test results with the associated result graphic and gives an explanation of the circumstances under which each result would be shown Test Result TEOAE Pass Note Noisy al T IH
37. OAE test uses short duration stimuli During test setup a rectangular stimulus is used During data collection a bipolar stimulus is used The rectangular is a unipolar pulse of 78uS length The bipolar stimulus is 1 cycle of a triangle waveform of 240uS period Both stimuli are low pass filtered by a 10kHz anti alias filter which rounds any sharp edges b Transducers and headband force The stimulus is delivered to the patient s ear using a UGS or UGD Otodynamics probe The probe tip holds the probe ear piece in the ear canal with no headband or other retaining device required c Sound field system The sound field is generated by the probe sealed in the ear canal by its tip d amp e Calibration cavity and measurement type For the purposes of EN60645 3 calibration was performed in an occluded ear canal simulator conforming to IEC 60711 Bruel and Kjear type 4157 The probe was mounted in a DB2012 adaptor using an Otodynamics probe tip The sound ports of the probe were aligned with the 4157 reference plane AUGD probe was used for the calibration Sound levels from the 4157 ear simulator were measured in dB SPL peak to peak equivalent as defined in EN60645 3 f Signal levels The following conversion factors convert between the stimulus level reported on the Otoport screen and the signal level in the IEC 60711 occluded ear simulator rectangular stimulus 6 1dB bipolar stimulus 7 1dB The follo
38. On then test results can be saved from the test result screen with a single key push see chapter 5 Test for details If Quick Save is Off then options to enter patient details and review the test result are available before test is saved Print If Print is set to Automatic then the test result is automatically printed after the test is saved If Print is set to Manual then the user has the option to print the test after save End Print If End Print is set to Patient then all the test results for the current patient are printed at the end of the test lf End Print is set to Test then only the last test performed is printed at the end of the test Select Save to accept the setting and Cancel to discard any change Note To avoid printout duplication it is not possible to set Print to Automatic and End Print to Patient c ad 5 D m S o Oo 80 CHAPTER EIGHT Configuration 8 5 4 1 Print type 8 5 4 m Print type controls the length and detail contained in the Otoport printout 8 5 4 n 8 5 4 0 8 5 4 8 5 4 q 8 5 4 4 8 5 4 5 8 5 4 t 8 5 4 u 8 5 4 v 8 5 4 w 8 5 4 x 8 5 4 y The Summary format prints only core patient and test details The Detailed format prints a fuller set of patient and test quality details See chapter 9 2 4 for printout examples On connect On connect printing allows printing to be initiated as soon as a wired printer is connected Thi
39. Otoport Lite User Manual Otoport Lite Issue 3 Otoport Lite Issue C3 January 2013 Otoport Lite v3 24 1 0 onwards Doc Ref MANOLC 03 Copyright Notice No part of this publication may be copied by any means translated or distributed to third parties without the express written permission of Otodynamics Ltd Copyright 2013 Otodynamics Ltd All Rights Reserved Otodynamics Ltd onal 30 38 Beaconsfield Rd Hatfield Herts AL10 8BB Contents 1 Introduction 1 1 General use precautions 2 Getting started 2 1 22 2 3 2 4 2 5 2 6 2 1 2 8 2 9 Otoport Lite case contents Optional accessories Controls indicators and connections Scanner and labelling Initial charge Quickstart Using the keys and keypad Connecting the probe Disconnecting the probe 3 Switching On 3 1 3 2 3 3 3 4 Switch on screen Logo screen Login Main menu 4 Test preparation 4 1 4 2 4 3 4 4 4 5 General checks before testing Connecting the probe Tip selection and probe fitting Helpful hints OAEs and screening 31 31 31 32 34 Otoport Lite 3 User Manual 5 Test 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 1 6 2 6 3 6 4 Checkfit TE test TEOAE model DP Test DPOAE model Quick Save option Review Save Final review Last Result Worklist Adding Patients Testing from the worklist Editing details Deleting patients Records 7 1 8 1 3 2 8 3
40. Pa 10 to 90 non condensing lt 10s when unit is stored within stated temperature range Indoor use 5 to 40 Celsius Max 80 up to 31C decreasing linearly to 5 RH at 40C Otodynamics instruments and probes are calibrated at an ambient pressure of 101 kPa standard atmospheric pressure at sea level Lowering the ambient pressure significantly e g when operating at altitude alters the acoustic response of the probe For instance at an ambient pressure of 80 kPa standard atmospheric pres sure at 2000m changes of up to 2 dB can be observed in the response of the probe around 2KHz This could cause the probe to fail standard calibration tests N eel G 0 0 Q Q G lt S oan Q Q 138 CHAPTER TWENTY ONE Technical specifications 21 1 11 Classifications and standards Device Class 2a Directive 93 42 EEC BS EN ISO 13485 2003 REF EN46001 superseded 01 03 2004 ISO 14971 Application of risk management BS EN 60601 1 Medical Electrical Equipment Part 1 General Requirements for Safety BS EN 60601 1 1 Medical Electrical Equipment Part 1 General Requirements for Safety Collateral Standard Safety Requirements for Medical Electrical Systems BS EN 60601 1 2 Medical Electrical Equipment Part 1 2 General Requirements for Safety Collateral Standard Electromagnetic Compatibility BS EN 60601 1 4 Medical electrical equipment Part 1 General requirements for safety Section 4
41. apter s Configuration Quick Save On RIGHT CANCEL LEFT If Quick Save is On select Left to save the test to the left ear or Right to save to the right ear The test will be saved to the current patient or will be given an automatic ID and name This name and ID may be edited by selecting Last from the main menu screen see chapter 5 8 lf Automatic print is selected see chapter 8 Configuration the print routine will be activated at this stage After printing or immediately after saving the unit will return to the Main Menu Select Cancel to proceed without saving the test The user will be prompted to confirm Cancel without save CONFIRM CANCEL Otoport Lite 51 User Manual 54 1 e After the save is confirmed the option to retest the same patient will be displayed Select Yes to run another test on the same patient or No to return to the main menu Retest same patient 54 2 Quick Save Off 5 4 2 4 If Quick Save is Off select Save to enter Patient Details and then save the ear tested CANCEL SAVE REVIEW 54 2 Select Review to view the data of the completed test prior to saving 54 2 Select Cancel to discard the test result A prompt requiring confirmation will be shown before the result is discarded Test 52 CHAPTER FIVE Test 5 5 5 5 a 5 5b 5 5 c 5 5 d 5 5 e Review The review screen shows the result of the test If the display is set to One Circle TE model
42. arging status indicators Speaker Charger and PC 3 cable socket mo Q J N 0 S Pa Q 9 16 CHAPTER TWO Getting started 24 Scanner and labelling BIE Barcode RFID scanner not included as standard ic fe Hit o i i PE Haye zo pane ori W FAR L e4 FE ip Pra A Pi Ej Model serial am gt number ole x certification s a 4 manufacturer details HE E The Otoport serial number comprises model code LTC or LDC in this instance year and month of manufacture yymm and unique manufacture ID xxxx The complete serial number is therefore LTC yymmxxxx Grip strip jir i 2 5 2 5 a 2 6 2 6 a Otoport Lite 17 User Manual Initial charge Before using your Otoport for the first time fully charge the unit See chapter 15 Otoport Lite Power for details Quickstart The Quickstart guide included as a separate item in your document pack is shown on the next two pages Q ae de 7 3 Je ov 18 CHAPTER TWO Getting started Ctodynamics Audiology Systems QUICKSTART Otoport Lite Setting up your Otoport knurled sleeve 1 With the arrow at the front 2 Press the g button to turnon 3 The startup screen shows connect the probe and the Otoport Confirm within the date time and battery screw the knurled sleeve 2 seconds by pressing the status until finger tight button 1 Sel
43. articular frequency as with the TEOAE Circles test display described above Test frequencies F2 for DPOAE are 2 3 4 and 6 kHz c ad 5 D m S o Oo 70 CHAPTER EIGHT Configuration 8 3 3 8 3 3 a 8 3 3 5 8 3 3 8 3 3 d 8 3 3 e 8 3 3 1 Mode TEOAE Mode sets the pass criteria for screening The Wide Band setting requires a signal to noise ratio SNR of 6dB over the 841 4757Hz frequency range in order to meet the pass criteria The Narrow setting also requires a signal to noise ratio SNR of 6dB over the 841 4757Hz frequency range in order to meet the pass criteria However this setting uses a filter of 1 6 3 2kHz and a stimulus response window 4 10ms to reduce the impact of environmental noise on the recording This makes this setting particularly appropriate for screening in a noisy environment The Any 2 Bands Any 3 Bands and Any 4 Bands settings require a 6dB SNR and a minimum signal level of SdBSPL in each of the stated number of half octave frequency bands to meet the pass criteria All test modes require a minimum overall wide band signal level of OdBSPL and that the amount of data collected has reached a minimum level to met the pass criteria The fixed and configurable test parameters are summarised in the tables below Fixed test parameters Min sweeps NLo 30 Min total wide band OAE signal OdBSPL Min band signal 5dBSPL Stimulus level 84 1dB pe Max
44. asurements of OAE responses Before it leaves Otodynamics each system supplied is calibrated using high quality acoustic measuring equipment traceable to national standards Users should conduct the recommended weekly checks see chapter 11 to ensure the instrument is working correctly In addition to this the calibration of the instrument should be periodically checked with laboratory equipment Otodynamics advises regular calibration checks at intervals not exceeding 3 years and ideally annually Contact your dealer or Otodynamics to arrange a calibration check Q rar i 132 CHAPTER TWENTY Mode of operation 20 Mode of operation oi TEOAE model Parameter Description Stimulus Idle 80us positive broadband square wave pulse with an intensity of 64dB pe peak equivalent in a 1cc cavity Adjusted 80us positive broadband square wave Test 300us biphasic broadband triangular pulse Waveform sample rate 20kHz Stimulus pattern Each sweep presents 8 stimuli for each to the two response buffers 16 stimuli in total The stimulus presentation pattern is XXX Y X X X Y Where Y 3X Response buffer averaging The responses from each stimuli in a sweep are summed and averaged Averaging this stimulus pattern removes artefacts which scale linearly leaving only the OAE signal which is non linear These sub averages are alternately added to two separate averages These separate averages are
45. be changed The correct size tip will look slightly larger than the ear canal and should fit snugly forming a complete seal with the ear canal wall Fitting for newborns Gently lift the pinna upwards away from the baby s head and then towards the back of the head This will open the ear canal Insert the probe at approximately 10 o clock for left ear or 2 o clock for right ear Turn the probe ear piece to 12 o clock Hold the probe for several seconds Then release the pinna and let go of the probe 4 3 2 4 3 2 a 4 3 2 b 4 3 2 c 4 3 2 d 4 4 4 4 a 4 4 b Otoport Lite 33 User Manual Fitting for children and adults Line up the probe to 7 o clock for left ear or 5 o clock for right ear Push the probe firmly into the ear canal at this angle Hold the probe for several seconds Then release the probe No discomfort should be felt by the patient The weight of the probe cable should be supported to minimise the risk of the probe being pulled out during testing Use the probe cable clip supplied ensuring there is sufficient slack in the cable to allow for movement of the patient s head If the correct tip is used the probe should stay in place without aid However it is acceptable to hold the probe gently in the ear if the patient is restless Helpful hints The most frequent cause of unsuccessful OAE recordings is failure to fit the probe correctly so that it is deep enough in the ea
46. charged and try again If the Otoport still fails to complete its start up sequence then contact your dealer or Otodyamics for support System details The Configuration area includes in the System menu a System details screen This screen provides information for Otodynamics engineers relating to the Otoport hardware If your device is not functioning correctly or you suspect a fault go to the System details menu and check for any error number reported at the top of the screen If zeros are reported at the top of the screen no errors have been detected on the device For support regarding a fault report error numbers to your dealer or Otodynamics Select Reset to reset the Otoport to factory default settings Changes from the default setting and any users or worklist patients added to the device will be lost No test data will be removed Otoport Lite 127 User Manual 16 3 d Select Format to reformat the Otoport database Any records held on the device will be irrecoverably lost 16 3 e The Format and Reset options are only available to users with Admin rights a Instrument fault message 16 4 a In the event of an instrument fault the following message will be displayed at the start a test Instrument Fault Turm off Otoport then run system checks x 16 4 b Instrument fault turn off Otoport then run system checks 16 4 c No stimulus will be delivered from the Otoport probe and you will not be able to start a tes
47. ched on then re try If there is a problem connecting to the printer using the wireless method the following screen will be displayed providing options to cancel search for an alternative printer ALTER or retry amp Printer not Found Retry or search for an Alternative Printer CANCEL ALTER RETRY To retry the print ensure the printer is switched on and is within range 5m Then select Retry If printing wirelessly and you have an alternative printer available select Alter and the Otoport will connect to this printer To cancel the printout select Cancel Once your print has completed pull the paper sharply towards you across the serrated tear bar to remove the printout and store it with your patient records 9 4 9 4 a 9 4 b 9 4 c 9 4 d 9 5 9 5 a 9 5 b 9 5 c 9 5 d 9 5 e 9 5 f Otoport Lite 91 User Manual Printer fault detection The printer can detect if the paper roll has run out or if the lid is open Under these circumstances the Otoport will report the printer is out of paper and the following message will be displayed OUT OF PAPER Select OK to cancel the print job Retry the printout when you have rectified the problem For wireless printing print jobs sent to the printer will be stored spooled and printed when the detected condition is rectified The printer s green light will flash when a print job is being stored Printer light summary The light at
48. ck sound from being omitted from the ear piece and to prevent ambient noise from being read by the microphone Then start a test as normal All the cavity size indicators in Checkfit should be filled indicating a very low sound level and Check probe fit should be displayed If so the Occlusion Test has passed If not check that the coupler is fitted to the probe correctly making sure the coupler tube ends are fully occluded by a finger and that the environmental noise level is low It may be necessary to change the coupler tubes Repeat the test if necessary 11 4 11 4 a 11 4 b 11 4 c 11 4 d 11 4 e 11 4 f Otoport Lite 107 User Manual Real ear test Testing with a known good ear allows for test data to be checked for reproducibility Before starting a real ear test change the Test Settings Display to Circles see chapter 8 Configuration This will help when comparing results for reproducibility A test may then be performed using the standard test procedure on the known good ear This result may then be compared with previous results from the same ear Real ear tests should be performed in similar test environments to be comparable Some adult ears with no significant hearing loss produce little or no TEOAE If possible the Real Ear Test should be performed on an ear which is known to have strong TEOAEs If you are unable to achieve a Real Ear OK result in an ear which is known to have OAEs then e
49. d If the result Stopped Too Soon Too Noisy or Poor Probe Fit is achieved retest checking that the probe ear piece is firmly inserted into the test cavity and that the noise conditions within the room are acceptable for a test to be conducted Continue to retest until either No Valid OAE or Pass result is given If Pass is shown at the end of the test or if the circle for any band is more than 1 filled save and retest making sure the ear piece has been firmly pressed into the test cavity Check the top of the test cavity and ensure it is securely attached to the clear plastic part of the test cavity If the resources are available repeat the test with a different test cavity and then with a different probe This will identify which component is responsible for the problem Contact your dealer or Otodynamics for further advice Probe checks 106 CHAPTER ELEVEN Probe checks 11 2 k 11 3 11 3 a 11 3 b 11 3 c 11 3 d 11 3 Note If a signal is detected in the test cavity ensure that five successful cavity tests are performed on the Otoport before returning it to use Refit the probe in the cavity between each test Occlusion test If the probe coupler is not fitted correctly sound may leak between the probe loudspeaker and microphone The Occlusion Test helps to check that the probe is assembled and is performing correctly To occlude the probe place a finger firmly over the end of the coupler tubes to blo
50. dicates progress towards pass criteria If all test criteria have been met when the test is finished the circle will be completely filled and show a large checkmark 8 3 1 6 8 3 1 1 8 3 1 9 8 3 1 h 8 3 1 1 8 3 1 j 8 3 1 k 8 3 1 1 8 3 2 8 3 2 a 8 3 2 6 Otoport Lite 69 User Manual At the end of the test a full circle may be displayed without a checkmark indicating the SNR criteria have been met but not the minimum signal level criteria The default setting is One circle If Circles is selected the information on OAE levels in half octave frequency bands centred at 1 1 5 2 3 and 4 kHz is displayed during testing TE TEST An empty circle means that OAE data has not yet been recorded at that frequency The circle fills from the bottom indicating good quality OAE data is being collected in that frequency region As a circle fills this indicates progress towards band pass criteria If band pass criteria have been met when the test has finished the circle representing that frequency band will be completely filled and show a large checkmark When the test has finished bands displaying a full circle without a checkmark have met the SNR criteria but not the minimum signal level criteria The Circles setting is not available if Mode is set to Wide Band or Narrow Display DPOAE The display for the Otoport DP is Circles and cannot be changed Each circle represents the SNR recorded at a p
51. e recorded the SNR A fuller circle indicates that the SNR and signal level are closer to the pass criteria Circles TE TEST 1 16 2 4 E KR CANCEL The Circles display shows a series of small circles like the large circle in the simple One circle display Each small circle represents the SNR recorded in a particular 1 2 octave frequency band when the minimum signal level is met If the minimum signal level is not met the circle will not fill completely even if SNR criterion has been achieved The numbers below the circles indicate the kHz frequency of the centre of the 1 2 octave band 5 2 2 f 5 2 2 9 5 2 2 h 5 2 2 i 5 2 2 5 2 2 k 5 2 2 l 5 2 2 m 5 2 2 n Otoport Lite 41 User Manual Noise level indicator A Noise Level Indicator is shown on the right of the Checkfit screen The bar moves in response to changes in noise For good testing conditions the bar should be consistently below the Noise Reject Level which is represented by the horizontal line across the Noise Level Indicator The bar is filled red if the level is above the threshold and green if it is below The noise level shown is calculated from the peak sound level recorded within each response window The letter below the indicator represents the noise reject threshold level This can be altered using the up and down arrow keys The noise level indicator allows continuous monitoring of the noise level during a test Test condi
52. e rub and providing greater probe stability 12214 Using the cable clip 12 2 1 2 Push the plunger to open the cable grip 12 2 1 Place the probe cable in the slot and release the plunger The position of the clip on the cable can be adjusted if necessary 12 2 1 c Open the crocodile clothing clip 12 2 14 Attach the probe cable clip to the patient s clothing l a a q be 1 L 12 21 e If the cable slips through the grip turn the head to grip the cable 122 14 Use a sterile wipe to clean the clip vo O Q O O 5 6 ae Q 2 O ku A 110 CHAPTER TWELVE Probe tips and accessories 12 3 12 3 a 12 3 1 Probe tips Samples of either TEOAE or DPOAE tips are provided with your instrument Further supplies may be obtained from your distributor or from Otodynamics TEOAE tips T3E REF A90 01 2 0 Fits 3mm ear canal Small and premature newborns T5C REF A90 20 2 0 Fits 5mm ear canal Newborns T6 5B REF A90 04 2 0 Fits 6 5mm ear canal Large newborns and first year infants TSM A90 05 2 0 Fits 8mm ear canal Infants and small adult ears T11M REF A90 07 2 0 Fits 11mm ear canal Large adult ears T4 5C REF A90 02 2 0 Fits 4 5mm ear canal Small newborns T5 5B REF A90 03 2 0 Fits 5 5mm ear canal Most newborns T7M A90 24 2 0 Fits 7mm ear canal Infants and children TSM REF A90 06 2 0 Fit
53. ect Result when a patient is highlighted to inspect the patient s saved Test Results A summary of each test will be shown Select Back at any time to exit the Patient List screen and return to the main menu N xo i 0 0 x 64 CHAPTER SEVEN Records TAA Details PATIENT DETAILS W114 ID Notes OGPM2108 Name Hale D O B 01 Feb 2012 Gender 4 Male b BACK PRINT TEST 711 2 The Patient Details screen allows the user to see the ID Notes field Name Date of Birth DOB and Gender stored for a particular patient 7 11 Selecting Test from this screen starts a new test the result of which will be saved with the records of the selected patient 71 1 c Selecting the up and down arrow keys on the patient details screen displays the patients before or after the current patient in the patient list Selecting the left and right arrow screens displays the test results for the selected patient 7 1 1 4 Select Back to return to the Patient list 7 1 2 7 1 2 a 7 1 2 b TAZC T1246 7 1 2 e Otoport Lite 65 User Manual Results lt TRAINING REQUIRED The test summary gives an overview of the test result including 2 octave band passes and total OAE signal level The diagrams following illustrate the features of a test summary screen The number of tests currently saved to the patient is displayed in the top right of the screen The up and down arrow indicators to the left of the screen show that
54. ect an appropriate tip 2 Fit the tip to the earpiece 3 Fit the earpiece in the ear canal 1 To run a TEST press the D 2 The size of the ear being 3 During the test the circle fills button l tested is indicated by the as OAEs are detected TE graphic Press w to START model only Display depends on test setup Otoport Lite 19 User Manual ENTER DETAILS RHI M3NO00 Oliver 23 Mar 2012 SCAN SAVE 4 DP tests display a circle for 5 The test will auto stop with 6 Enter the patient details and each frequency the result shown Select Save Save with the button CONFIRM J RETEST PRINT FINISH 7 Select the ear tested with the 8 Select Save with the 9 After saving you have options E buttons button to Retest the patient Print i the result or Finish the test Step 4 Disconnecting the probe 1 Unscrew the knurled sleeve 2 Do NOT turn the main probe 3 Gently pull out the probe body N Otodynamics Ltd 2 R www otodynamics com hes International 44 0 1707 267540 sos Email support otodynamics com or z OY Q an e u 3 Par Q 9 20 CHAPTER TWO Getting started 2 7 PATE 2 7 1 a 2 1 2 2 2 a 2 7 2 D Using the keys and keypad Control keys The keys directly below the screen marked with a square a diamond or a circle enable you to execute the functions offered on the screens Their functions vary from screen to screen but generally the right circle k
55. ed by absorption and reflection from structures objects and people a Field strengths from fixed transmitters such as base stations for radio cellular cordless telephones and land mobile radios amateur radio AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy To assess the electromagnetic environment due to fixed RF transmitters an electromagnetic site survey should be considered If the measured field strength in the location in which the Otoport is used exceeds the applicable RF compliance level above the Otoport should be observed to verify normal operation If abnormal performance is observed additional measures may be necessary such as re orienting or relocating the Otoport b Over the frequency range 150 kHz to 80 MHz field strengths should be less than 3 V m Otoport Lite 143 User Manual Recommended separation distances between portable and mobile RF communications equipment and the Otoport The Otoport is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled The user of the Otoport can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment transmitters and the Otoport as recommended below according to the maximum output power of the communications equipment Rated maximum Separation distance according to frequency output power of of transmitter m trans
56. er that there is limited storage capacity left 8 5 1 f 8 5 2 8 5 2 a 8 5 2 6 8 5 2 C 8 5 2 0 8 5 2 e 8 5 2 f 8 5 2 9 8 5 2 h 8 8 2 1 8 5 2 8 5 2 k 8 5 2 l Otoport Lite 77 User Manual If the Memory Status screen has been displayed because the Otoport memory is full or nearly full the user will also have the option to Download data to a PC using Otolink Controls CONTROLS 2 Brightness 3 Backlight Volume Use the left and right arrow keys to decrease or increase the Volume level To turn the sound off press the left arrow key repeatedly until Sound Off appears in the centre of the display Select Save to accept the new Volume level Select Back to ignore changes and return to the Controls Menu Brightness The screen Brightness can be altered by pressing the left right arrow keys Select Save to accept the adjusted Brightness level Select Cancel to ignore changes and return to the Controls Menu Backlight Use the left and right arrow keys to toggle between the Backlight control choices for the screen and keypad The backlight can be configured to be either always on or off or on for a limited period of time 7 10 20 or 30 seconds after a key press Reduction in the backlight time will help to preserve battery charge during operation Select Save to accept the Backlight setting Select Back to ignore changes and return to the Controls Menu c ad 5
57. evel This can be altered using the up and down arrow keys The noise level indicator allows continuous monitoring of the noise level during a test Test condition information When conditions are good for data collection DP TEST will be shown at the top of the screen and progress indicators will move either side of the title to show that a test is currently running Test stop reasons There are three possible ways in which a test can stop AutoStop Test Timeout and Manual End When the test stops the data collected is assessed and a result given as a pop up graphic and then written highlighted at the top of the test screen The Otoport will beep once if a test has stopped with a DPOAE Pass result and will beep twice if the test has stopped with any other result AutoStop and Stopping Pass criteria are configured in the test settings area section 8 3 AutoStop If the test data collected meets the set pass criteria then the test will AutoStop and a large checkmark will be displayed Test timeout If a test has not met the set pass criteria then the test will stop after 60 seconds Test 48 CHAPTER FIVE Test 5 3 3 f 5 3 3 g 5 3 3 h 5 3 3 i Manual end Selecting End at any time will stop the test Pausing and cancelling the test CANCEL TEST ka CHECKFIT YES You may wish to pause a test for instance during periods of noise When the test is paused it is possible to cancel the test and discard
58. ew N A user administrator rights Select No to restrict the user N A to screener rights 8 6 1 c 8 6 1 d 8 6 1 e 8 6 1 f 8 6 2 8 6 2 a 8 6 2 b 8 6 2 c 8 6 2 d 8 6 2 e 8 6 2 f 8 6 2 g 8 6 2 h Otoport Lite 83 User Manual The User ID is added to a saved test record to identify the user who performed the test The User ID must therefore be unique and the message Cannot Save User ID already exists will appear on Save if the chosen User ID is already associated with a current user The device will return to the New User screen where the User ID field will be selected for editing Selecting Save will add the user to the User List The User List will appear with the newly saved user highlighted on screen The message Cannot Save Please enter Name and User ID may appear after selecting Save if either of the two fields have been left unfilled Select Cancel to cancel the addition of a New User and return to the Users menu screen A new user is given a choice of two levels of access rights If Yes is selected in the administrator field then the user will have full access to all the Config areas of the device Select No to restrict the user s rights to only the Probe test area in Config disabling access to higher level functions View Users The User List displays the Name Password and Status of all users currently saved to the device Select Back to exit the User List and return to the Users Menu
59. ey provides affirmative options and the left Square key provides negative options Arrow navigation keys The arrow navigation keys provide Left Right Up and Down control and allow the user to move to options available on the screen The selected option becomes highlighted The left and right arrow keys scroll through the main menu options 240 2 7 3 a 210 0 2 7 3 C 2 7 4 2 4 a Otoport Lite 21 User Manual Entering characters ra f Character entry is similar to a mobile phone where numbered keys can be pressed sequentially to select the required character The order of the characters is dependent on context For example when used to enter Patient ID Numbers are presented first then capitals e g 2ABC Family Name For the first character capitals are presented first then lower case then numbers e g ABCabc2 For subsequent characters lower case is shown first e g abcABC2 More characters can be stored than can be displayed on the screen Arrows are displayed to indicate that the string continues to the left or the right Pressing the appropriate Arrow navigation keys will display the hidden characters Foreign character table A foreign character pop up table can be accessed by holding down the 1 key for 1 5 sec Use the Arrow keys to navigate around the table Select Insert to enter the required character or select Cancel to close the table window Q ae de
60. g the main probe body smooth chrome section Main probe body This will result in damage to the probe and will invalidate the probe warranty 3 1 3 1 a Otoport Lite 27 User Manual switching On Switch on screen a To switch on the Otoport press the green On Off power key found at the bottom left of the keypad The display screen will show Switch Unit On Switch Unit On Select Yes to confirm Otoport switch on or No to turn the unit off again If Yes or No are not selected within two seconds of pressing the on off power key the device will automatically turn off The unit will turn off if any key other than Yes is selected This is to prevent accidental switch on during transit 28 CHAPTER THREE Switching on 3 2 3 2 a 3 2 b 3 2 C 3 2 0 Logo screen 44 Jan 12 g r Li T T T I Following switch on an Otodynamics logo animation is displayed whilst the device performs a series of hardware system checks In the unlikely event of any of the systems checks failing an error message will be displayed see chapter 16 5 Hardware fault messages for details A battery graphic will appear to the right of the logo to provide an indication of the Battery Power remaining Please refer to chapter 15 Otoport Power for battery information The date and time are also shown at the top of the screen and can be reset if necessary via the Configuration menu see chapter 8 Selecti
61. hen the lid fig 1 Remove the coupler tubes by pushing the end of the tubes down onto a hard surface fig 2 Pull out the tubes by gripping them fig 3 Never remove them by pulling on the cable Finally pull the coupler tubes away from the probe fig 4 H Lay Po BY Reassembling the probe Fit the new coupler tubes to the probe assembly fig 1 Fit the outer shell figs 2 and 3 followed by the lid fig 4 Click the lid into place using firm finger pressure only Finally fit a new tip fig 4 SEs 14 14 wd i ll oly Notes e Fit a new tip for each test e Check that the coupler tubes are not contaminated before fitting the tip e Ifthe coupler tubes are contaminated replace them We recommend fitting new coupler tubes at regular intervals approx every 20 40 tests as a preventive measure e Perform weekly probe QA tests see chapter 11 Probe tests 13 3 13 3 a 13 3 b 13 3 C Otoport Lite 115 User Manual Probes safety note Probes are designed for use with an Otodynamics disposable tip Use of a tip is essential Use without a tip will expose the ear canal to the hard plastic sound tubes and this might cause injury Use without a tip or with an incorrect or non Otodynamics tip may also Cause serious errors in measurement This could invalidate the OAE recording Probe care 116 CHAPTER FOURTEEN Care of the Otoport 14 14 0 a
62. hen the Otoport has reached this level of charge The Otoport should be charged as soon as convenient 15 4 3 Auto switch off 15 4 3 a The Otoport will automatically switch off when the battery is empty It will be necessary to charge the Otoport before it will switch on again hn O gt O 3 wo tan O 2 O ae O 122 CHAPTER FIFTEEN Otoport power 15 5 15 5 a 15 5 b 15 5 c 15 521 15 5 1 a 15 5 1 b 15 5 1 Charging the Otoport lt gt TRAINING REQUIRED Observe the on screen battery indicators to determine when to charge your Otoport In general it is advisable to charge the Otoport batteries when the indicator is empty showing less than 10 charge However the batteries should be at least 30 charged if a full day s testing is planned It is recommended to charge the Otoport using the charger supplied but it is also possible to charge the device using the PC cable connected to a PC Note Do not charge more than one Otoport on the same PC at any one time Connecting the Otoport for charging Switch off the Otoport prior to charging Connect the mains lead to the charger and plug the mains lead into a power socket and switch on the power The green light on the charger will illuminate indicating it is powered Then connect the slotted charger plug to the Otoport Ensure the arrow is facing upwards cee r ay j F o gt 2 h oy Otoport Lite 123 User Man
63. ic low voltage power supply network that supplies buildings used for domestic purposes Harmonic emissions Class A IEC 61000 3 2 Voltage fluctuations Complies flicker emissions IEC 61000 3 3 The Otoport should not be used adjacent to or stacked with other equipment and that if adjacent or stacked use is necessary the Otoport should be observed to verify normal operation in the configuration in which it is used N S c eel G 0 0 Q Q G lt S oan Q Q 140 CHAPTER TWENTY ONE Technical specifications Guidance and manufacturer s declaration electromagnetic immunity The Otoport is intended for use in the electromagnetic environment specified below The user of the Otoport should ensure that it is used in such an environment Immunity test IEC 60601 Compliance test level level Electrostatic 6 kV contact 6kV contact discharge ESD 8 kV air 8 kV air IEC 61000 4 2 Electrical fast 2 kV for power 2kV for power transient burst supply lines supply lines IEC 61000 4 4 1 kV forinput 1kV for input output lines output lines Surge 1 kV line s to 1kV differential line s mode IEC 61000 4 5 2kVline s to 2kKV common earth mode Voltage dips lt 5 Ut lt 5 Ur short interrup gt 95 dip in Ut gt 95 dip in U7 tions and voltage for 0 5 cycle for 0 5 cycle variations on power supply 40 Ur 40 Ur input lines 60 dip in Ut 60 dip in Ur for
64. ications 21 1 5 21 1 6 21 17 21 1 8 21 1 9 Clock Calendar Internal Real Time Clock Calendar operates to 2099 Power Li Polymer Battery Intelligent multi level power control for charging testing idle sleep shutdown After 1 5 minutes unit will enter sleep mode After 20 minutes in sleep mode unit will shut down Sleep time 20 hours minimum with fully charged battery Running time 6 hours minimum continuous data collection Battery voltage operating range 3 4 2V Max consumption when testing 720mW Max consumption when charging 2 5W Source 1000mAh lithium polymer internal rechargeable cells Charge time 3 hours to 90 capacity Approximately 4 hours to 100 Hardware Options Bluetooth wireless printing Barcode scanner RFID reader Hardware processing and storage Embedded microcontroller plus dedicated hardware DSP engine 4GB of non volatile memory for storing programs configuration patient details and test results Analogue performance Output channels 2 x 16bit resolution Input channels 1 x 16bit resolution Sample rate Variable Frequency response Electrical 160Hz to 12KHz 2110 Environmental X 7 N Otoport Lite 137 User Manual a N Protect from heat and radioactive sources Keep dry Transport and storage Pressure Humidity Qs Warm up time Operating fe oS Humidity Temperature range Temperature range 0 to 40 Celsius 23KPa to 101K
65. indication of canal size can only be used as an approximate guide to probe fit Otoport Lite 37 User Manual 5 1 1 j If the position of the Fit Size Indicator corresponds with the age of the patient and Checkfit is displayed on the top of the screen then the probe fit and the test conditions are adequate for testing The Stimulus and Noise OK indicators above the screen should also be illuminated Select Start to continue the test 511k If there is a disagreement between the Fit Size Indicator and the ear canal size expected of your patient then there may be a problem with the probe or the probe fit For example an indication of a large ear canal in a neonate may occur if the probe has fallen out of the ear or if the probe is blocked an indication of a small ear canal in an adult may occur because of wax blocking the canal 5 1 1 1 Noise Level Indicator 5 1 1 A Noise Level Indicator is shown on the right of the Checkfit screen The red green bar moves in response to changes in noise For good testing conditions the bar should be green and remain consistently below the Noise Reject Level which is represented by the horizontal line across the Noise Level Indicator In poor testing conditions when the noise level is above the Noise Reject level the bar will be red 51 1 n The letter below the indicator represents the noise reject threshold level This can be altered using the up and down arrow keys 5 11 0 Generally higher noise
66. ist M 7 0 a 7 0 b 7 0 c 7 0 d Records Records The Records section allows the user to see the Results of previous tests and to view the Details of patients previously tested Records may be via from the Memory Status screen accessed from the Configuration area see chapter 8 Records also allows the user to select a previously tested patient for a new test Selecting Records from the Main Menu takes the user to the Patient List screen 7 1 7 1 a 7 1 b 7 1 c 7 1 d 7 1 e 7 1 f Otoport Lite 63 User Manual Patient list PATIENT wit NAME ID NOTES OGPM2108 OGPM2107 OGPM2106 OGPM2105 OGPM2103 DETAIL RESULT The Patient list displays the ID Notes field and Name of each patient The up and Down arrow indicators to the left of the Patient List show that there are other Patient Records not currently visible on screen At the top of the screen the total number of patients in the list and the position of the current patient in the list are displayed 12 34 indicates that the current patient is twelfth in a list of 34 patients Use the up and down arrow keys to scroll through the list one Patient Record at a time A selected patient will be shown as highlighted in the list Use the left and right arrow keys to skip through the Patient List 5 records at a time Select Detail to review the complete Patient Details of the highlighted patient or to run a new test on this patient Sel
67. l test Testing should only be conducted in rooms where the noise level recording on the Otoport is mainly below the noise reject level when the probe is not fitted in the ear Some intermittent noise can be tolerated but constant high noise will inhibit successful recordings OAEs and screening OAE testing is commonly used as the primary hearing screen in newborns with no known hearing loss risk factors Failure to show a strong OAE indicates that further testing or observation is necessary OAE testing is frequently used as the initial screen within the at risk population Passing the OAE test indicates that normal middle ear and cochlear function is present The specific risks must be evaluated to determine whether ABR auditory brainstem response testing is necessary even after a pass at OAE Certain clinical conditions indicate the possibility of retro cochlear neurological disorders which the OAE test cannot detect Otoport Lite 35 User Manual TRAINING REQUIRED LAST TEST LAST WORK LIST PATIENT DETAILS WA ID Notes OGPM1VO00 Name Brown D O B 05 Jan 2012 4 Female BACK PRINT TEST 5 0 a A Test may be started by selecting Test or Last from the main menu screen from the Worklist or by selecting Test from the Patient details screen in the Records area 5 0 b You will not be able to start a test if the Otoport is connected to a PC or power supply Test 36 CHAPTER FIVE Test 5 1 5 1 1 5 1 1 a
68. luetooth wireless technology optional or with a custom printer cable 86 CHAPTER NINE Printing a2 When you can print 9 2 a The Otoport provides flexible options to print from various areas of the user interface including printing at the end of the test 9 2 b Print settings are located under Configuration in System Setup CONFIGURATION SYSTEM 1 Probe Tesi 1 Memory Status 2 Test Settings 2 Controls 3 Date amp Time 3 Battery 4 System 4 Setup 5 Users 5 System Info SELECT SETUP Manual Test Detailed 9 2 1 9 2 1 a 9 2 2 9 2 2 a 9 2 3 9 2 3 a 9 2 3 b Otoport Lite 87 User Manual Printing at the end of a test D PRINT FINISH When the OAE recording is finished and the result has been saved select Print for a printout of the patient details and test results see chapter 8 5 4 9 Automatic print on save For efficiency you can configure the Otoport to automatically print when the test is saved see 8 5 4 Setup for details The test is saved and a print initiated with one key push rather than starting the printout separately Printing from records PATIENT DETAILS Wit ID Notes OGPM 2108 Name Hale D O B 01 Feb 2012 Gender 4 Wale I BACK PRINT TEST Results can be printed from the Otoport Records area Select the patient for which you would like to print results see the Records section for details of how to retrieve specific records from the database
69. ment cover 9 8 d Push down and slide back the battery compartment cover 2 9 8 Remove the old battery pack and disconnect the battery pack connector noting its orientation 9 8 f Fit the battery pack connector 3 taking care to insert it correctly 9 8 g Fit the battery pack ensuring wires 4 are not trapped 9 8 h Slide back the battery compartment cover and replace the screw Important Note Only charge the printer if it contains an approved battery pack supplied by your dealer or Otodynamics Ltd 10 10 1 10 1 a 10 1 b 10 2 10 2 a 10 2 1 10 2 1 a 10 2 1 b Otoport Lite 95 User Manual scanning Scanning facility As well as the standard data entry method using the keypad the Otoport provides two optional methods for data entry using scanners The scanning methods are designed to reduce testing session times by making the patient data entry method efficient The scanners can also be used as part of the device security system during login Each operator can be assigned a login card which the Otoport will scan and verify in order to provide access to the machine Scanner types The Otoport has two scanning methods available Barcode scanning This method will scan barcodes which as standard hold numerical data In screening programs which use barcode identification for patient ID the Otoport can be used to scan this number quickly into the device To scan with the barcode
70. message 127 FFT frequency bin 134 Fit Size Indicator 37 Foreign Character Table 21 Frequency ratio 134 Otoport Lite 149 User Manual G Good Stimulus 15 Hard reset 23 Hardware Options 136 Hardware processing and storage 136 Initial charge 118 Interfaces 135 K Keypad 20 135 L Language 80 LEDs 23 Lock up 126 Login 29 Logo 28 Low Battery 121 150 CHAPTER TWENTY TWO Index Main menu 30 Manual end 42 48 Manufacturer details 16 Maximum NLo Sweeps 42 Memory capacity 133 134 Memory status 76 77 Menu selection buttons 15 Microphone input filter 133 Mode DPOAE 71 Mode TEOAE 70 Model 16 Neonate setting 72 NLo sweeps 42 No Clear Response 44 49 Noise Level Indicator 37 41 47 Noise OK LED 23 Noise rejection calculation 134 Noisy 37 103 NReject 72 O Occlusion test 106 On Off power button 15 On connect 80 One circle 40 Options 8 Otocheck lock up 126 P Paper 92 Pass 102 Password 29 Patient list 63 Pausing the test 43 48 Poor Probe Fit 44 49 Power 118 136 Precautions 9 Printer 14 Printer battery 94 Printer fault detection 91 Printer light summary 91 Printing 85 Probe 24 Probe cable clip 109 Probe care 113 Probe checks 99 Probe fit 32 Probe socket 15 Probes safety 115 Probe test 100 Probe tips 110 Q Query 103 Quickstart 17 Real ear test 107 Records 62 Response buffer averaging 132 Response frequency bands 133 Response frequency range
71. mitter W 150 kHz to 80 MHz to 800 MHz to 80 MHz 800 MHz 2 5 GHz d 1 2V P d 1 2VP d 2 3VP 0 01 0 23 0 1 0 38 0 38 0 73 For transmitters rated at a maximum output power not listed above the recommended separation distance d in metres m can be estimated using the equation applicable to the frequency of the transmitter where P is the maximum output power rating of the transmitter in watts W according to the transmitter manufacturer Notes 1 At 80 MHz and 800 MHz the separation distance for the higher frequency range applies 2 These guidelines may not apply in all situations Electromagnetic propagation is affected by absorption and reflection from structures objects and people The Otoport can be optionally configured with either both Bluetooth and RFID functions The frequency bands for reception and transmission of RF energy for these functions are as follows a Bluetooth 2 4GHz to 2 4835GHz b RFID 13 56MHz The Bluetooth and RFID functions of the Otoport may be interfered with by other equipment even if that equipment complies with CISPR emission requirements N S c q G 0 0 Q Q G lt S oan Q Q 144 CHAPTER TWENTY ONE Technical specifications 21 3 EN60645 3 conformance notes These notes are provided in compliance with EN60645 3 Electroacoustics audiometric equipment Part 3 test signals of short duration a Types of short duration stimuli The Otoport TE
72. n The noise level for noise reject is calculated from the difference between consecutive 80ms samples Stimulus frequencies F2 Sine waves of 6 4 3 and 2 kHz Frequency ratio F2 1 22 F1 Memory capacity Patients 500 Tests per patient 256 Total tests 500 Otoport Lite 135 User Manual 24 Technical specifications 11 General Note The Otoport has no user serviceable parts Any required servicing must be conducted by Otodynamics Ltd or authorised service facilities only 21 1 1 Physical Hand held device 197mm x 70mm max x 30mm Weight 0 55lbs 250g Charger 90mm x 38mm x 28mm Weight 120g 2142 Interfaces Probe connector compatible with Otodynamics UGx probes 8 pin Charging Data connector connects to Otodynamics PSU charging or to PC USB port USB 1 10r 2 0 via Data Cable Bluetooth wireless print option RFID reader option 21413 Indicators Data Display Resolution QVGA 320 x 240 pixels 166 dpi Technology Colour LCD 16 bit displaying 65K colours Viewable Area 46 5mm x 36 5mm Backlight White intelligent control Probe fit Noise OK Blue LED N Stimulus OK Blue LED S Power Charge Power OK Green LED Fast charge Amber LED Audible Wide range speaker provides audio feedback of status 21 1 4 Keypad 19 key alphanumeric with cursor control and soft keys N S eel G 0 0 Q Q G lt g one Q Q 136 CHAPTER TWENTY ONE Technical specif
73. ng Config during start up takes the user to the Configuration menu where probe test test settings date time system details and users may be viewed or edited see chapter 8 Configuration 3 9 3 3 a 3 3 b 3 3 c 3 3 d 3 3 e Otoport Lite 29 User Manual SCAN LOGIN If Login is on see chapter 8 6 the login screen will be displayed and the user will be required to enter a name and password Use the left and right arrow keys to choose the correct user name from the choice bar After the user is selected use the data entry keypad to enter a corresponding Password if set for that user To improve security during Login a symbol will replace each character as it is entered in the Password field To review charcters that have been entered simply scroll back through the using the left and right arrow keys When the User and Password have been chosen select Login to access the device If the Password has been entered incorrectly then a warning message will appear as below incorect Login Password x 30 CHAPTER THREE Switching on 3 Main menu 3 4 4 You are then presented with the main menu screen From here you can view the Result of the last test select the Last patient tested or perform a Test The heading on the screen indicates whether the Otoport is a TEOAE or DPOAE model 3 4 b LAST TEST RESULT LAST TEOAE model DPOAE Model Use the left and right arrows to access Records and the W
74. nual The Configuration menu can be accessed by selecting Config on the logo screen after switching on Select Probe Test to check the calibration performance of a probe Select Test Settings to change test display and pass criteria Select Date amp Time to set the current date and time Select System for memory battery and system information Select Users for login options Note Users without Admin rights will only have access to Probe Test The other items will be hidden Probe test Details of how to perform a probe test are in chapter 11 Probe checks c ad 5 D m S o Oo 68 CHAPTER EIGHT Configuration 8 3 8 3 a 8 3 b 8 3 c 8 3 1 8 3 1 a 8 3 1 6 8 3 1 C 8 3 1 d Test settings TEST SETTINGS Display i Circles Mode Any3Bands gt Neonate 4 Off b Nreject 4 Variable T CANCEL SAVE Use the arrow keys to navigate and choose between the setup options described below Select Save to apply the settings changes you have made and return to the Configuration screen Select Cancel to discard changes made to date and time settings and return to the Configuration screen Display TEOAE TE TEST If One circle is selected a single circle display is shown An empty circle means that OAE data has not yet been recorded The circle fills from the bottom indicating good quality OAE data is being collected As the circle fills this in
75. o respond to user control hold the On Off key down for 10 seconds in order to reset the device You may then switch on the device as normal Q ae de 7 3 Par ov 24 CHAPTER TWO Getting started 2 8 2 8 a 2 8 b 2 8 C 2 6 0 Connecting the probe TRAINING REQUIRED Prior to the testing session connect the probe to the Otoport The probe plug contains a key that must be aligned with the keyway in the probe socket on the Otoport Probe key Socket keyway The arrow at the front of the probe plug indicates the position of the key and should be aligned with the front of the Otoport Arrow It is possible to feel when the probe key is aligned as the probe will mate with the socket easily Align arrow with front of Otoport 2 8 e 2 8 f 2 9 2 9 a Otoport Lite 25 User Manual Push the probe into the socket until it hits the end stop DO NOT force in the probe Probe in socket Turn knurled sleeve clockwise Disconnecting the probe To disconnect the probe unscrew the knurled sleeve in an anticlockwise direction until the thread is disengaged Turn knurled sleeve anti clockwise Q ae de 7 3 Je ov 26 CHAPTER TWO Getting started 2 9 b Then gently pull the probe out from the probe socket Remove probe 2 9 c Important Note Do NOT attempt to screw or unscrew the probe by holdin
76. of clicks into the ear and records the response The OAE signal is very small and difficult to distinguish from the noise made by other sounds in the room and by the patient The longer the Otoport records for the easier it is to distinguish the OAE signal from the noise The Otoport looks at the ratio of the OAE signal to the noise this is known as the Signal to Noise Ratio or SNR The Otoport measures the SNR in a number of different frequency bands The pass criteria is set in the Configuration area see chapter 8 Configuration The default pass criteria is an SNR of 6dB and a minimum signal of gt 5dBSPL in at least two frequency bands It is the responsibility of the user to ensure that the pass criteria set meet their requirements 5 2 1 5 2 1 a 5 2 1 b 5 2 1 c 5 2 1 d Otoport Lite 39 User Manual Stimulus adjustment ADJUSTING When START is selected the Otoport will attempt to adjust the stimulus level to the required level The message Adjusting is displayed while this is happening Once the correct level has been reached by default the Otoport automatically begins the test The Otoport may not be able to adjust the stimulus to the correct level in noisy environments if the probe fit is poor or if the patient s ear canal is unusually large If the correct stimulus level is not reached after 10 seconds then the message Stim out of range will be displayed The user then has the option to Continue or
77. only a large checkmark is displayed to indicate a pass H RETEST PRINT FINISH If the display is set to Circles full circles appear with a checkmark in each band that met pass criteria FEQAE PASS 0000e ees F e A KHE M RETEST PRINT FINISH Note If the SNR criteria are met but not the minimum signal criteria see chapter 8 Configuration a full circle will be displayed without a checkmark The user may Save or Cancel the result from the Review screen at the end of review 5 6 5 6 a 5 6 b 5 6 c 5 6 d 5 6 e 5 6 f 5 6 g 5 6 h Otoport Lite 53 User Manual Save ENTER DETAILS ID Notes OGPM1V00 dd Mmm yyyy Gender NotGiven CANCEL RECORDS SAVE The Enter details screen is shown The patient ID is filled with an automatically generated ID The Name field displays Auto The user may either save these details or overwrite them with alternative patient s details If an ID is not required this field may be used as a notes field A Date of Birth D O B and Gender may also be added for the patient A further three fields are available by scrolling down using the arrow keys These are NICU Yes or No Location Inpatient Outpatient or At Home and Facility Note Only one Facility can be stored on the Otoport It is not possible to store different facilities for different patients If you wish to change the Facility download and erase all test records from the O
78. or Noise OK indicator Refer to operating instructions Training required Otoport Lite 147 User Manual 148 CHAPTER TWENTY TWO Index 22 Index A Accessories 14 Adjusting 39 Analogue performance 136 Arrow navigation buttons 20 AutoStop 42 47 Auto switch off 121 Backlight 23 Barcode RFID scanner 16 Barcode scanning 95 Battery 28 78 118 120 Beep 42 47 BGS 108 Blue LEDs 23 Body amp Lid 108 Brightness 77 Buttons 20 C Calendar 136 Cancelling the test 43 48 Case 14 Cavity test 105 Certification 16 Changing probe coupler tubes 113 Charger and PC cable socket 15 Charging status indicators 15 Charging the Otoport 122 Charging the printer 93 Checkfit 36 Checkfit stimulus 134 Check probe fit 37 Choice bars 22 Circle 40 Circles 40 Cleaning 113 116 Clear Response 44 Clock 136 Conditioning the Otoport battery 125 Connecting the probe 24 Control buttons 20 Coupler assembly 113 Coupler tubes 108 113 Critical battery 121 Data entry keypad 15 Data summary screen 41 Date 28 Date and time 75 Deleting characters 23 Details 104 Disconnecting the probe 25 Dismantling the probe 114 Display 15 Display DPOAE 69 Display TEOAE 68 Docking station 14 DP Noise calculation 134 DP Stims DP only 73 DP stimulus calibration 45 DP Test 45 Ear canal size 36 Edit User 83 Entering Characters 21 Entering Dates 22 Environmental 137 Extend 73 j Fail 102 Fault
79. ork List See chapters 6 and 7 for further details Records WORK LIST 4 1 4 1 a 4 1 b 4 1 c 4 1 d 4 1 e 4 1 f 4 2 4 2 a Otoport Lite 31 User Manual Test preparation s TRAINING REQUIRED General checks before testing Ensure the Otoport is charged see chapter 15 Otoport power for information Ensure the Otoport weekly checks are being regularly conducted see chapter 11 Probe checks for information Do not run an OAE test if there is any discharge from the ear to be tested Choose a quiet room without background noises Ensure the patient is comfortable and settled Ensure you can clearly see the ear to be tested Connecting the probe Prior to the testing session connect the probe to the Otoport S al tee a G du em del O 32 CHAPTER FOUR Test preparation 4 3 4 3 a 4 3 1 4 3 1 a 4 3 1 b 4 3 1 c 4 3 1 d Tip selection and probe fitting Appropriate tip selection and good probe fit are essential to ensure successful OAE recordings A good probe fit will help to block out external noise and enhance the OAE signal The Otoport is supplied with a full range of tips to fit all ear canal sizes When selecting a tip first inspect the ear to be tested to assess its size and to check that it is clear and free from debris If debris subsequently enters the probe sound tubes do not attempt to clean them the coupler tubes should
80. ost Over time batteries will wear and lose their capacity resulting in quicker discharge The batteries may therefore need replacing around every 4 years of use Otoport power 120 CHAPTER FIFTEEN Otoport power 4 Battery charge 15 4 a When the Otoport is switched on the opening screen shows a battery indicator which displays the remaining level of battery charge 15 4 b The indicator has 5 segments which convey the total Battery Charge remaining The battery segments are shaded according to the following criteria Segments Displayed Battery Power 95 100 75 94 55 74 40 54 30 39 20 29 1 10 19 0 lt 10 NIO BR aI OJIN Otoport Lite 121 User Manual 15 4 1 Low battery LOW BATTERY Please charge unit 15 4 1 2 When the battery power reaches less than 10 remaining a Low Battery warning message will be displayed This equates to approximately 30 minutes of testing time Select OK to accept the message and return to the previous screen This screen will continue to appear every minute as a reminder to charge the battery 1542 Critical battery A CRITICAL BATTERY Charge Otoport before starting a new test 15 4 2 2 When the battery power reaches 7 remaining a Critical Battery warning message will appear on screen This equates to approximately 10 minutes of use Select OK to accept the message and return to the previous screen It will not be possible to start a new test w
81. our patient records 9 7 9 7 a 9 7 b 9 7 C 9 7 d Otoport Lite 93 User Manual Charging the printer s TRAINING REQUIRED To charge the printer plug the charger into a mains outlet socket and insert the charger jack plug into the rear of the printer The light on the printer will flash green orange to show the printer is on charge The red charger light will also illuminate A full charge will take approximately 15 hours ie Charger jack plug socket The printer can be used as normal whilst charging Once fully charged the printer has enough power for around 10 hours standby use The batteries should provide enough power to print several rolls of paper The printer light will flash green red when the batteries are low Note The printer charger is not medically approved The Otoport must not be in patient contact if connected to the printer whilst the printer is charging 94 CHAPTER NINE Printing 9 8 9 8 a 9 8 b 9 8 c 9 8 i Changing the battery Ss TRAINING REQUIRED The printer battery will provide up to 500 charge and discharge cycles If the battery performance deteriorates the batteries will need to be changed A spare battery cradle which takes 4 AAA batteries is provided with the printer Alternatively a new battery pack can be obtained from your dealer or Otodynamics To change the battery pack Remove the screw 1 from the battery compart
82. probe body and lid Charger and mains lead or charging cradle PC cable for downloading patient and test data to PC ET Sample probe tips in compartmented box sij 2k 2s lal Otoport Lite 13 User Manual Otolink software CD T pa a e aie a att iy r Infection control sleeve transparent easy clean cover for optional use with Otoport shown fitted below right Documentation pack including instrument and software manuals Quickstart and probe use guides Q ae de 7 3 Par ov 14 CHAPTER TWO Getting started 2 2 2 2 a 2 2 b 2 2 6 220 Optional accessories A range of additional accessories are available from your distributor or from Otodynamics Otoport docking station a stable base to hold the Otoport with connections for printing charging and downloading to PC shown with Otoport below right Otoport printer a small portable printer for wired or optional wireless connection is gm ae i F p aT Large Otoport case with additional compartment for printer shown below left with Otoport kit including printer Otoport Lite 15 User Manual m Controls indicators and connections Probe socket 9 _____ a Stimulus OK S and Noise OK N and Otodynamics indicators Display screen Menu selection keys Up down left right navigation keys Data entry keypad On Off power key Ch
83. r canal The presence of fluid and debris in the ear canal or middle ear will also inhibit recordings If a pass result is not obtained remove the probe and inspect the probe tip Discard the tip if it has collected debris or moisture Also check that the probe coupler tubes are clear and replace these if a blockage is noticed Then refit the probe and try again Problems of debris and middle ear fluid occur mostly in babies younger than 6 hours and are often cleared by feeding or turning the baby If there is no success during the first OAE testing attempts a second OAE testing session usually brings success when the ear has had time to clear S we tee a G du em del O 34 CHAPTER FOUR Test preparation 4 4 c 4 4 d 4 5 4 5 a 4 5 b Babies are best tested when they are sleeping or sleepy and successful OAE recordings are most often made one hour after a feed The baby may settle down more easily if swaddled Babies older than one month may be too active to test When testing a child it can help to entertain them during the test so they don t become too restless Try to keep the probe cable out of their reach using the probe cable clip may help Instruct adults to be still and remain quiet Noises from the patient may not prevent successful recording but will increase the test time Constant environmental background noise for example from air conditioning or machinery may prevent a successfu
84. r connected to the Otoport for extended periods even if the device is fully charged This may be convenient if you wish to leave the device charging overnight When powered by either a charger or PC the Otoport is powered from the attached device and not its internal batteries When connected to a charger it is possible to switch on and control the Otoport but it is not possible to run a test When connected to a PC it is not possible to control the Otoport If the Otoport is on when it is connected to a PC the current screen displayed will remain until the device is unplugged again Disconnecting the Otoport When the charging cable is disconnected the power light will extinguish on the Otoport and if the Otoport was off prior to the charging session the screen will return to blank If on during the charging session the current screen will remain displayed Otoport Lite 125 User Manual se Conditioning the Otoport battery 15 6 a In order to maintain the Otoport battery and keep it at optimal performance you should condition the battery once per year or if the unit s battery appears to run down more quickly than expected This process involves completely discharging the battery using a function provided in the Otoport System area and then fully charging the device see chapter 8 Configuration 15 6 b The condition utility is available from the Configuration menu by selecting System then Battery Selecting Condition and confi
85. reen Select Cancel to discard changes made to date and time settings and return to the Configuration screen Important Note Do not set the date on the Otoport to an earlier date if there is data stored on the device c ad 5 D m S o Oo 76 CHAPTER EIGHT Configuration 8 5 8 5 a 8 5 1 8 5 1 a 8 5 1 b 8 5 1 c 8 5 1 d 8 5 1 e system SYSTEM 1 Memory Status 2 Controls 2 Battery 4 Setup 5 System Info SELECT The System screen allows users to view information on Memory Status Controls Battery power System Information or to change the Setup Memory status MEMORY STATUS Test Mermory T Fe i Si 97 Free Memory BACK ERASE The Otoport has the capacity to store up to 500 test records The memory status screen displays the number of records currently stored and the percentage memory still available Selecting Erase deletes all test records from the Otoport after requesting confirmation from the user A screen confirming the Erase is then displayed and the user is returned to the main menu If there is less than 10 free memory then the Memory Status screen will be displayed at start up If there is 0 free memory then the Memory Status screen will be displayed automatically and no further tests may be performed until tests have been erased The Memory Status screen will be displayed immediately after the 450th result has been saved warning the us
86. reject can give faster data collection but poorer quality data The best noise reject setting depends on both test conditions and the strength of the emission being tested Strong emissions may be detected in a noisy environment with a high noise reject threshold Weak emissions may only be detected in a quiet environment with a low noise reject threshold 51 1 Checkfit condition information 5 3 1 q When conditions are good for data collection TE TEST or DP TEST will be shown at the top of the screen and progress indicators will move either side of the title to show that a test is currently running 5 4 1 1 Check Probe Fit is shown if the stimulus level falls outside the accepted range 5 1 1 Noisy appears if the noise level is consistently above the Noise Reject Level for a period of time 5 1 1 Ringing is displayed when there is obvious oscillation within the Stimulus Waveform after the initial expected positive and negative peaks 38 CHAPTER FIVE Test 5 1 1 u 5 2 5 2 a 5 2 b The following table describes what Highlighted Message will appear if more than one condition is met Consistent Stimulus Out Stimulus Highlighted High Noise of Range Ringing Message No No No Checkfit Yes No No Noisy No Yes No Check Probe Fit No No Yes Ringing Yes Yes No Check Probe Fit Yes No Yes Ringing No Yes Yes Check Probe Fit Yes Yes Yes Check Probe Fit TE test TEOAE model During testing the Otoport plays a series
87. rge your Otoport with the charger charging cradle or docking station supplied by Otodynamics Battery life The Otoport is powered using an internal rechargeable battery The battery will provide enough power for over 250 tests from a single charge With built in power save functions and by switching the device off for the periods between tests the battery will provide enough power for over a week s intensive use Initial charge The Otoport is fully charged before it leaves the Otodynamics factory However the battery will discharge slowly even if the device is switched off Itis therefore recommended that an initial charge is provided to fully charge the battery before using your Otoport for the first time 15 3 15 3 a 15 3 b 15 3 c 15 3 d 15 3 e Otoport Lite 119 User Manual Standby To save power the Otoport will go into standby mode after 3 minutes of inactivity The standby screen will be displayed The Otoport will not go into standby if a test is being performed To resume from standby press any key on the keypad The Otoport will wake up and return to the previous screen displayed If the Otoport is left for 20 minutes in standby it will turn off An audible beep will be emitted from the device for a period of 10 seconds to alert the user prior to the automatic shut down Notes Following an OAE recording always save test data as data that has not been saved prior to auto switch off will be l
88. rming will set the device to full power to drain the battery SYSTEM 1 Memory Status 2 Controls 3 Battery 4 Setup 5 System Info SELECT 15 6 c This process can take up to 6 hours Select Cancel to stop the conditioning process The Otoport will automatically switch off when the battery has been fully discharged Now fully charge the Otoport to complete the battery condition cycle Wait for the tick on the screen and for the charge light to extinguish to confirm a full charge BATTERY DISCHARGE BATTERY Charge 95 7 Charge 80 7 Time 369 min E Time 551 min Health oo I Health 99 voltage 41V I Voltage 40 BACK CONDITION NO 1561 Additional battery care 15 6 1 a If the Otoport is not in regular use in order to maintain the battery fully charge the device every two months hn O gt O 3 we tan O 2 O ae O 126 CHAPTER SIXTEEN Troubleshooting 16 16 1 16 1 a 16 2 16 2 a 16 3 16 3 a 16 3 b 16 3 c Troubleshooting Otoport lock up In the unlikely event of an Otoport lock up and it is not possible to control the device turn the unit off and switch it on again If this is not possible hold down the on off power key for 10 seconds this will force the unit to switch off Turn on the Otoport again Switch on During switch on the Otoport conducts a series of system checks If the Otoport will not switch on and complete its start up sequence check that it is
89. s 9mm ear canal Most adult ears T13M A90 18 2 0 Fits 13mm ear canal Extra large adult ears DPOAE TEOAE tips R4 8S A90 08 2 0 Fits 4 8mm ear canal Small newborns R6 8B A90 17 2 0 Fits 6 8mm ear canal Large newborns and first year infants R8M A90 09 2 0 Fits 8mm ear canal Infants and small adult ears R11M _ REF A90 11 2 0 Fits 11mm ear canal Large adult ears Otoport Lite 111 User Manual R5 8B REF A90 16 2 0 Fits 5 8mm ear canal Most newborns R7M A90 25 2 0 Fits 7mm ear canal Infants and children ROM A90 10 2 0 Fits 9mm ear canal Most adult ears R13M A90 19 2 0 Fits 13mm ear canal Extra large adult ears 2 vo O Q O O 5 z 6 ae Q 2 O ku A 112 CHAPTER TWELVE Probe tips and accessories 12 3 3 12 3 3 a 12 3 3 b 12 3 3 C 12 3 3 d Use of tips Ss TRAINING REQUIRED All Otodynamics probe tips are disposable and MUST be discarded after each test The probe coupler tubes should be visually examined for signs of contamination and the outer parts cleaned with an antiseptic wipe Take care not to squeeze any cleaning fluid into the tubes The TEOAE tip design leaves a 0 5mm gap between the end of the coupler tubes and the end of the tip Therefore the tubes should never come into contact with the patient OAEs should NOT be conducted if there is evidence of fluid of any kind in the ear canal Not
90. s is particularly useful if the Otoport is used with a Docking Station as it allows results to be printed as soon as the Otoport is dropped into the docking station On connect may be turned Off or set to print the last Test all unprinted tests for the last Patient or All unprinted tests Printing will only start if the Otoport is on and displaying one of the main module screens see chapter 3 4 If Cancel is selected during the print three options are available lf Cancel Print is selected the Otoport will not attempt to automatically print the test s again test may still be selected to be printed manually If Retry is selected then printing will recommence If Stop On Connect is selected then the On connect setting is turned off and the Otoport will not attempt to print tests on connection in future Worklist The Worklist allows details for multiple patients to be entered into the Otoport prior to testing If Worklist is set to On the list is accessible from the main menu see chapter 6 If the Worklist is set to Off it is not available Language Select the language you require using the left and right arrowkeys Otoport Lite 81 User Manual sss System info 8 5 5 a The System Info screen provides information on the Otoport 855b System Details 8 5 5 c System Details displays information for Otodynamics engineers See chapter 16 3 for further details 855d About ABOUT Lite Otocheck DP Revision 3 17 1
91. scanner position the Otoport parallel with the barcode at a distance of around 10cm and select Scan Line up the red light across the barcode 96 CHAPTER TEN scanning 10 2 1 c 10 2 1 d 10 2 2 10 2 2 a 10 2 2 6 10 2 2 c The Otoport will show a Scanning screen Wi CANCEL When the barcode is read successfully a beep will sound and the barcode number will populate the required field Select Cancel to abort the scan RFID scanning This method scans radio frequency identification RFID chips which can hold enough alphanumeric data for a complete patient data record on the Otoport To scan with the RFID scanner hold the card up to the Otoport scanning window Select Scan and swipe the Otoport across the card slowly The Otoport will show a Scanning screen as above When the RFID card is read successfully a beep will sound and data will populate the required fields Select Cancel to abort the scan Otoport Lite 97 User Manual os When to use the scanners 1031 Entering patient details ENTER DETAILS ID JUDLS700 Family AUTO Edd Mmm yyyy SCAN TEST 10 3 4 a If a scan option is fitted patient details may be entered using the Scan facility To access the Scan function first press any key except the menu selection keys The central menu option will now change to Scan Select Scan to populate the patient details Make further edits manually with the keypad 10 3 1 Then continue to ei
92. t Turn off the device and then switch it on again 16 4 d Important Note The Instrument Fault message can be triggered by a partially connected probe Ensure that the probe is fully connected and the knurled sleeve screwed up correctly See Connecting the probe in the Getting started section 16 4 e Run the probe checks see chapter 11 If the tests are OK the device is functioning correctly and can be used for OAE testing again 16 4 If you receive the Instrument fault message again contact your dealer or Otodynamics for support D e e s 2 gt el Sow 128 CHAPTER SIXTEEN Troubleshooting 16 5 16 5 a 16 5 b 16 5 c 16 5 d 16 5 e Hardware fault messages The Otoport performs a series of hardware tests when it is first turned on In the event of a fault being detected the following message will be displayed Hardware Fault Error 03 x The error code number displayed indicates the type of error detected You should make a note of this error number The Otoport should then be turned on and off a number of times to ensure that the error doesn t reoccur If you receive the hardware fault message again contact your distributor or Otodynamics for support Error 2 The above message indicates that excessive noise was detected during start up The noise may have been detected through the probe if it was connected Noise detected through the probe does not indicate a
93. t stored values which may be blank for a newly registered probe Before entering Probe Test the user will be prompted to register the probe with the Otoport Select Back to exit the Probe Test screen and return to the Configuration screen 11 2 11 2 a 11 2 b i hres 11 2 d 11 2 11 2 f 11 2 9 11 2 h 11 2 412 Otoport Lite 105 User Manual Cavity test Due to mechanical or electrical failure or a faulty probe the system may itself produce signals during a test that have similar characteristics to an OAE response The test cavity will not produce any OAE signal so any signal produced in the cavity is the result of a fault By performing an OAE test in a cavity rather than an ear it is possible to determine whether signal responses recorded in the ear are being generated by a fault Before starting a cavity test for the TE model change the Test Settings Display to Circles for the DP model change the stimulus level to 65 55 see chapter 8 Configuration Follow the instructions on the previous page for inserting the probe into the test cavity Start a test on the Otoport as you would for an ordinary ear see chapter 5 Test Follow the Checkfit and Test screen sequences until the test stops Ina cavity the Checkfit screen should indicate a large cavity volume If the result No Valid OAE is displayed and the Circles are no more than 25 percent full when the test stops the cavity test has passe
94. t Ear Save Test to Left Right Ear Again may appear on Save if the patient s previous test was saved to the same ear Select Yes to accept the current ear choice or No to return to the Select Ear screen If Auto print is selected the print routine will be activated at this stage Final review After saving the user is given the opportunity for a final test review There are options to Print the test results to Retest the same patient or to Finish and return to the main menu TEOAE PASS M RETEST PRINT FINISH Retest will start a new test for the same patient This can be used to retest the same ear or to test the opposite ear Print will print the current test result or all the test results for the current patient see chapter 9 2 Test 56 CHAPTER FIVE Test 5 8 5 8 a 5 8 b 5 8 c RESULT LAST After one ear has been tested further tests can be added to the same patient record by selecting Last from the main menu Patient details can be amended and tests printed using this function From the Main Menu select Last The Patient Details screen is displayed PATIENT DETAILS Wi ID Notes OGPM1V00 Name Brown D O B 05 Jan 2012 Gender 1 Female BACK PRINT TEST Select Test to start a new test with the patient details displayed Select Print to print all tests saved to this patient or select Back to return to the main menu 5 8 d 5 8 e Otoport Lite 57 User Manual The details s
95. the data Select Cancel to pause the test Select Yes to end the test and discard the data No to resume the test and Checkfit to restart the test at the Checkfit stage 5 3 4 5 3 4 a Test results Otoport Lite 49 User Manual The following table lists all possible test results with the associated result graphic and gives an explanation of the circumstances under which each result would be shown Test Result DPOAE Pass Note Noisy IH ye Poor Probe Fit oO i No Valid OAE 9 Too Few Bands 9 Stopped Too Soon p Description The data collected has met the criteria set The optimum test setting will depend on your application e g screening or clinical measurement see 8 3 Test settings The following results will only occur if a DPOAE Pass is not obtained The noisy data collected is three times greater than the low noise data collected Probe fit movement is detected that results in less than 85 of stimuli reaching calibration levels The data collected has not met the set pass criteria and the test conditions were acceptable Insufficient bands meet their pass criteria The test has been ended manually before the required minimum amount of data has been collected Test 50 CHAPTER FIVE Test 5 4 5 4 a 5 4 1 5 4 1 a 5 4 1 6 5 4 1 c 5 4 1 d Quick Save option The options available from the test result screen depend on the Quick Save option see ch
96. the ear is exposed to sound Whilst the level of this exposure is harmless under normal test conditions it is not recommended that tests be allowed to continue indefinitely even if there is no result The Otoport includes stop criteria which will automatically terminate the test when an OAE pass has been achieved or after five minutes Whilst this limits the sound exposure in a single test the user is responsible for limiting the number of separate tests performed on the same ear The Otoport has built in signal analysis proven to distinguish true otoacoustic emissions from artefactal signals Checks should be performed weekly and before each test session to confirm the system continues to operate effectively see chapter 11 Probe checks In exceptional circumstances either an equipment fault or failure to comply fully with the instructions in this manual may result in unreliable test results Results with total OAE responses greater than 40 dB SPL should be considered highly suspect and should not be relied on The probe s coupler tubes which carry sound to and from the ear canal are protected from contamination by the disposable tip The probe should never be inserted into the ear without a disposable tip attached Doing so risks damage to the ear by the probe body and contamination of the probe by the ear If contamination occurs the coupler tubes must be replaced see 13 2 Changing probe coupler tubes Hr 0
97. ther test or save the result as normal 10 3 2 Adding a patient to the Worklist WORK LIST NAME ID INOTES Roberts OSPM1V02 OGPM1IVOS homson OGPM1V04 10 3 2 a If the Worklist already contains patients scroll down to the last line which will be empty then select Scan When the scanned details have been entered you may make further edits manually with the keypad 10 3 2 Then continue to either test or save the result as normal 98 CHAPTER TEN Scanning 1033 At login 10 3 3 a 10 3 3 b 10 3 3 c NEW USER User ID Password Admin CANCEL SCAN SAVE In order for a user to login using the scanning method it is necessary to set up their login account in the Users area see chapter 8 Configuration for more details On the New user screen select Scan The RFID method can set all user parameters For barcode scanning the user name ID and password are automatically set but the other user parameters need to be set manually To login using a scanner select Scan on the login screen M SCAN LOGIN The Otoport will automatically login the user selected with their appropriate access rights and present the main menu 11 11 0 a 11 0 5 11 0 c Otoport Lite 99 User Manual Probe checks Damage or malfunction of the Otoport or the probe can lead to errors in OAE recording To ensure that any faults are detected before they lead to faulty data collection the following tests can be performed
98. time Approx 40s Min data collected 0 64s per frequency c ad 5 D m S o Oo 12 CHAPTER EIGHT Configuration 8 3 5 Neonate 8 3 5 2 With Neonate setting On the user is warned if the response from the probe indicates a large ear canal This provides an additional check of probe fit for users who are testing only babies A Probe out of ear or large cavity detected CANCEL CHECKFIT START 8 3 5 The warning message is displayed after checkfit and before test start Start starts the test as normal Checkfit returns the user to Checkfit Cancel returns the user to the Main Menu 8 3 5 c Ear canal cavities greater than around 0 5cc will trigger the warning 8 3 5 d With Neonate setting Off no warning message is displayed if a large ear volume is detected 8 3 6 NReject 8 3 6 a The threshold above which data is rejected can be fixed at High Medium or Low Alternatively Variable can be selected allowing the reject level to be adjusted during checkfit and test 8 3 7 8 3 7 a 8 3 8 8 3 8 a 8 3 8 b 8 3 8 c 8 3 9 8 3 9 a 8 3 9 b Otoport Lite 73 User Manual Extend DP TEST lf Extend is On the user has the option to extend the test beyond the normal maximum duration This may be useful if the test result is very close to meeting the pass criteria at the normal test end If Extend is On the central key on the Otoport will show Extend when there are around 15 seconds of test time
99. tion information When conditions are good for data collection TE TEST will be shown at the top of the screen and progress indicators will move either side of the title to show that a test is currently running If test conditions are not optimum a highlighted message will appear indicating the problem See 5 1 1 p Data summary screen IE Jes 15 4 dBSPL 6 Sec ANY 2 BANDS i END Pressing the left and right arrow keys displays the Data Summary Screen This screen displays the current total OAE the total noise the time elapsed and the current test mode Press the left and right arrow keys again to return to the test screen Test 42 CHAPTER FIVE Test 5 2 3 5 2 3 a 5 2 3 5 2 3 C 5 2 3 d 5 2 3 e 5 2 3 1 5 2 3 g 5 2 3 h 5 2 3 i Test stop reasons There are four possible ways in which a test can stop AutoStop Maximum NLo Sweeps Test Timeout and Manual End When the test stops the data collected is assessed and a result given as a pop up graphic and then written highlighted at the top of the test screen The Otoport will beep once if a test has stopped with a TEOAE Pass result and will beep twice if the test has stopped with any other result AutoStop If the test data collected meets the set pass criteria then the test will AutoStop and a large checkmark will be displayed Maximum number of NLo sweeps If a test has not met the set pass criteria it will stop when the Maximum N
100. toport first It is also not possible to set the NICU field to Yes if Location is set to Outpatient or At home The fields are automatically corrected in this case Alternatively the user may select Records and choose an existing patient record to which the current results may be appended If the test was run using the Last option test results will be saved with the same details as the last performed test If a scanner is installed on the Otoport pressing any arrow key or key on the data entry panel will enable scan functions to enter patient details see chapter 10 Scanning for more information When the patient details are entered select Save to store the result Test 04 CHAPTER FIVE Test 5 6 1 5 6 1 a 5 6 1 b Select left or right ear SELECT EAR The Select Ear screen represents the patient facing you By defaulting to a No Ear Choice the Select Ear screen forces the user to choose an ear before the test can be saved Press the right control key or the right arrow to select the Left Ear or press the left control key or the left arrow key to select the Right Ear CONFIRM RIGHT SAVE When the correct test ear has been selected press Save to save the test record to the database A screen will be displayed briefly which confirms the test has been saved 5 6 1 c 5 6 1 d 5 7 5 7 a 5 7 b 5 7 C 5 7 d Otoport Lite 55 User Manual The pop up message Last Test Saved to Left Righ
101. tored can be edited by using the up down keys to locate the correct field and then entering the new data using the keypad All fields except Location Facility and NICU can be edited When an edit has been made the screen will change ENTER DETAILS ID Notes Brown 05 Jan 2012 4 Female SAVE If you are happy with the changes you have made select Save To discard the changes select Cancel Once changes are saved or cancelled the initial menu options return Back Print or Test Test 58 CHAPTER FIVE Test 5 9 5 9 a 5 9 b Result RESULT LAST Select Result to review the tests results for the current patient Select displays the detailed result for this test Select Print to print this test result TEQAE TEOAE PASS Any2Bands Ege 13 200 GG Noise 6 60ellLte2 3 4 14 Mar 12 10 23 ADN PRINT SELECT TEOAE PASS 0000 e iw 2 F ad KHz RETEST PRINT FINISH 6 0 a 6 0 b 6 1 6 1 a 6 1 5 Otoport Lite 59 User Manual Worklist The Worklist allows details for multiple patients to be entered into the Otoport prior to testing This eliminates the need for data entry while with the patient allowing for faster more flexible testing The Worklist is On by default but can be switched Off in the Config area see chapter 8 Access the Worklist by using the left or right navigation keys from the main menu Adding Patients WORK LIST If the worklist already contains patients
102. ual 155 14 Notes If forced it is possible to insert the charger connector into the Otoport the wrong way up In this position the Otoport will not charge Disconnect the connector and re insert with the arrow facing upwards If the cables provided with your Otoport have a locking connector as shown below squeeze the release keys at the sides of the connector when removing the plug 08 2Ws 15 5 1 e When the Otoport is connected the display will show the current battery level This screen is updated every minute to show how the charge is progressing 15 5 1 A full charge will take up to 4 hours 15 5 1g When the device is fully charged a large tick will appear on the screen hn O gt O 3 we tan O 2 O ae O 124 CHAPTER FIFTEEN Otoport power 15 5 2 15 5 2 a 15 5 2 b 15 5 2 15 5 2 d 15 5 2 e 15 5 2 f 15 5 2 g 15 5 2 h 15 5 3 15 5 3 a Additional charge indicators There are additional charge indicators on the side of the Otoport e Power light The green light below the plug symbol shows that the device is powered e Charging light The orange light below the battery symbol will illuminate when the device is being charged Note If the device appears fully charged with a tick displayed on screen but the charging light is still on if convenient allow the device to continue to charge until the charge light goes out It is possible to leave the charge
103. wing conversion factors convert between the signal level generated in the ear simulator by the Otoport stimulus and the level that would be generated by a reference stimulus of the same peak to peak electrical drive The reference stimulus is a 100uUS unipolar rectangular pulse as defined in EN60645 3 rectangular stimulus 3 0dB bipolar stimulus 2 4dB Otoport Lite 145 User Manual Suppose for example that a stimulus level of 90dB is reported by the Otoport during stimulus setup rectangular stimulus If this stimulus was replaced by the reference stimulus of the same amplitude the level generated in a IEC 60711 ear simulator would be 90dB 6 1dB 3 0dB 86 9 dB SPL peak to peak equivalent g Polarity of stimulus The polarity of the stimulus varies between positive and negative according to the TEOAE test sequence h Repetition rate The stimulus is repeated every 12 5mS during standard Otoport TEOAE setup and testing i Covered in a above j Covered in f above N S el G 0 0 Q Q G lt S oan Q Q 146 CHAPTER TWENTY ONE Technical specifications xa Symbol explanations TRAINING el REQUIRED Class Il Type BF Caution USB 1 1 When discarded the item must be sent to separate collection facilities for recovery and recycling Probe socket Battery charging indicator Power supply connection Stimulus OK indicat
104. within this range for the duration of the printout Printouts will not complete if wireless communication is lost The Print option will be shown in green if the Otoport is currently connected to a printer wirelessly Otherwise the Print option is shown in black Note When using multiple Otoports with wireless connection to a single printer the last Otoport to print must be switched off before another Otoport can print The printer is powered from batteries or can be connected to mains power when printing Prior to printing switch on the printer using the power button on the top When the printer is powered a green light will be displayed To save power the printer will automatically switch off after 30 minutes of inactivity If it is connected to mains power the printer will remain on indefinitely 90 CHAPTER NINE Printing 2 34 9 3 g 9 3 h 9 3 i 9 3j 9 3 k 9 3 1 When a print is initiated the Otoport will establish communication with the printer The screen Searching for Printer will be displayed Searching for printer The printout will then commence Once the printout is completed the screen from which the print was initiated will be displayed If there is a problem connecting to the printer using the wired method the message Printer not connected will be shown briefly and then the screen from which the print was initiated will be displayed Check the printer is connected correctly and swit

Otoport Lite Manual Issue 3

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