to the ProComp Infiniti User Manual.
Contents
1. One TT USB interface unit z A supply of fiber optic cable 1 and 10 cables a Four alkaline AA batteries Thought Technology s advanced design and active electronic sensors meet exacting standards for instrument accuracy sensitivity durability and ease of use All sensors are completely non invasive and require little or no preparation for use Depending on the software being used with the ProComp Infiniti encoder these may include sensors specialized for z Electromyography EMG Electrocardiography EKG n Electroencephalography EEG a Skin Conductance z Skin Temperature a Voltage Isolation a Respiration waveform rate and amplitude a Goniometer Blood Volume Pulse waveform heart rate and a Force amplitude BVP n Torsiometer The sensors pass signals to the host computer via the microprocessor controlled ProComp Infiniti encoder unit The encoder samples the incoming signals digitizes encodes and transmits the sampled data to the TT USB interface unit A fiber optic cable is used for transmission providing maximum freedom of movement signal fidelity and electrical isolation Cable lengths up to 25 feet can be used without signal degradation A unique feature of the system design allows inputs to accept any sensor interchangeably except the raw EMG MyoScan sensors which are used on channel A and B This allows a wide variety of configurations to be created by simply changing the sensor types The TT USB interface un2. Power Source Supply Voltage Battery Life Alkaline cells Low battery warning Sensor supply voltage ADC output Full scale input range DC LSB magnitude Encoder channel bandwidth 3dB and sample rate Anti aliasing Filter Alias rejection DC gain accuracy DC offset Overall system accuracy Offset drift calibration temperature 10C Encoder noise 130mm x 95mm x 37mm 5 1 x 3 7 x 1 5 200g 70z 4AA batteries single use alkaline or NiMh Rechargeable 3 6V 6 5V fiber optic minimum 4 0V Compact Flash 30h typical 20h minimum 20 30 minutes of battery life remaining 7 260V 2mV 14bits 2 8V 1 696V 207uV DC 512Hz 2048 samples second DC 64Hz 256 samples second DC 64Hz 200 samples second DC 8Hz 32 samples second DC 8Hz 20 samples second 5th order Butterworth 30dB typical 0 5 initial or after self calibration 3LSB initial or after self calibration 5 5 LSB 150uV RMS 1mV p p typical offset removed NOTE PROCOMP INFINITI and its sensors are sensitive electronic instruments and should be handled as such Be especially careful to avoid both pulling on the electrode cable and getting moisture or electrode gel on the sensor snaps If necessary wipe the surface with a damp cloth or use a moistened Q tip to remove gel from inside the sensor snaps Wipe with a dry cloth ProComp Infiniti Hardware Manual 36 Index B Battery Placement
3. However many hospitals and the FDA require that computers printers and any other equipment used with medical devices be electrically isolated from line voltage to UL or CSA medical safety standards e The PC used with ProComp Infiniti must be placed outside the patient client environment more than 3 meters or 10 feet or the PC must comply with EN60601 1 system safety e After use the Disposable Electrodes may be a biohazard Handle and when applicable dispose of these materials in accordance with accepted medical practice and any applicable local state and federal laws and regulations e Reusable electrodes present a potential risk of cross infection especially when used on abraded skin unless they are restricted to a single patient or sterilized between patients If sterilizing electrodes employ only gas sterilization e Radiated radio frequency electromagnetic fields can cause performance degradation in the MyoScan Pro EMG sensor In the worst case an RF field strength of 22mV M can cause an increase of 1uV in the signal reading from a MyoScan Pro sensor Be sure to keep in mind that a very relaxed muscle should provide an EMG reading of approximately 1 3uV e Explosion Hazard Do not use in the presence of a flammable anesthetic mixture with air or with Oxygen or Nitrous Oxide o Not to be immersed in water e Take care in arranging patient and sensor cables to avoid risk of patient entanglement or strangulation e The opera
4. If this happens repeatedly when you try to self calibrate the encoder return it to the manufacturer for service Notes About Self Calibration Self calibration requires that all sensors are unplugged from the encoder Near the start of the self calibration procedure the unit will check for plugged in sensors and abort the operation if they are detected However be sure not to plug any sensor into the unit after starting self calibration Doing so could result in calibration failure or in poor calibration on the affected channel Keep the encoder several feet from active electronic devices such as computers and monitors and avoid operating wireless devices near the encoder while it is performing a self calibration By depressing and briefly holding the power switch during the calibration but before it finishes you can abort the operation In this case the new calibration settings will not take effect A successful Self Calibration exercises most of the signal path of each channel and gives a high probability that the signal paths are working properly and are properly recalibrated However it does not exercise the entire signal path under realistic conditions and of course it does not calibrate the sensors If a higher degree of assurance is required that the unit is operating as per its original specifications you may return it and or the sensors to the manufacturer for a factory recalibration ProComp Infiniti Hardware Manual 28
5. wide bandwidth position the sensor will be sensitive to the full 20 500Hz bandwidth When recording SEMG from the upper body muscles the sensor might pick up some electrical interference from the heart muscle which is usually seen as a sharp spike occurring at every heartbeat This noise can be filtered out by moving the switch to the 400N narrow bandwidth position In this position the sensor will only be sensitive to frequencies between 100 and 200 Hz The third position 1600W is for monitoring large muscle groups like thigh muscles At the 400W or 400N positions the sensor s amplitude scale is 400 uV which allows for a good resolution for most of the body s muscles The larger body muscles can produce microvolt readings of up to 1600 uV To properly monitor their activity set the sensor to the 1600W position The MyoScan sensor s active range is from 10 to 500 Hz It can record SEMG signals from zero up to 2000 microvolts uV Sensor Placement When placing an SEMG sensor on a muscle site the best readings are obtained when the sensor is placed on the muscle belly and its positive and negative electrodes are parallel to the muscle fibers When using the extender cable though the direction of the fibers becomes irrelevant since the electrodes are frequently placed on different muscle groups The positive and negative electrodes should still be placed on the muscle bellies The reference electrode is best placed on a relati
6. 10 blood volume pulse 25 C Cable lengths 7 Compact Flash 10 Connecting the Encoder Unit 8 Comnecting the Interface Unit 8 E EEG sensor 20 EKG sensor 19 Encoder Time 12 Encoder Unit Comnecting 8 ProComp 9 F Fiber Optic Cab 15 Fiber Optic Cable 8 Interface Unit Connecting 8 M MyoScan 17 MyoScan Pro 17 O Order Placing 30 P PROCOMP Basic package 7 ProComp Encoder Setup 9 Protected Pins 14 R Recording 13 Repair Return Form Respiration sensor 26 Returning Equipment 30 S Self Calibration 28 Sensor Care 17 Sensors 7 skin conductance 24 skin temperature 25 switches 9 T Technical Support 30 TT USB 7 W Warranty 38 Z Zeroing 18 TN Warranty The PRoCompP INFINITI system and all equipment including optional items are guaranteed to be free from defects in material and workmanship for 1 year from the date of purchase In the unlikely event that repair is necessary call Thought Technology Ltd to receive a Return Authorization Then send the unit back by a traceable method Thought Technology will not be responsible for items not received We will repair or replace your unit s free of charge This warranty does not apply to damage incurred through accident alteration or abuse nor to sensor damage created by static electricity Do not use this equipment in dry static area unless using an anti static mat or anti static spray on carpeted areas Thought Tech
7. 400uVeams 0 1600uVems lt 0 1uVems 20Hz 500Hz 5 0 3uVems MyoScan EMG Sensor SA9503M Size Approx Weight Input Impedance Input Range Sensitivity CMRR Channel Bandwidth Signal Output Range Input Output Gain Supply Voltage Current Consumption Accuracy EKG Sensor SA9306M Size Approx Weight approx Input Impedance Signal Input Range Sensitivity CMRR Channel Bandwidth Signal Output Range Input Output Gain Supply Voltage Current Consumption Accuracy ProComp Infiniti Hardware Manual 37mm x 37mm x 12mm 1 45 x 1 45 x 0 45 15g 0 5 oz gt 10120 in parallel with 10pF 0 2000uVems lt 0 1uVems gt 130dB 10Hz 1kHz 0 1 0V pus 500 7 26V 0 02V 0 7mA 0 25mA 0 3uVems Plus 4 of reading 25 C to 30 C 37mm x 37mm x 12mm 1 45 x 1 45 x 0 45 25g 10z 1 000 000MQ in parallel with 10pF 0 12mVrmS lt 1uVems gt 130dB 0 05Hz 1kHz 0 600MVams 50 7 26V 0 05V lt 1 5mA 3uVems 5 of reading 25 C to 30 C 33 EEG Z Sensor SA9305Z Size Approx 37mm x 37mm x 12mm 1 45 x 1 45 x 0 45 Weight approx 25g 10z Input Impedance 10GQ in parallel with 10pF Signal Input Range 0 200uV Sensitivity lt 0 1uVems CMRR gt 130dB Channel Bandwidth 2Hz 1kHz Accuracy 0 3uVems 5 of reading 10 C to 40 C EEG Sensor SA9305M Size Approx 37mm x 37mm x 12mm 1 45 x 1 45 x 0 45 W
8. A AAA E 26 RESPIRATION AMPLITUDE RESP PLEX PRO cui aidoriices 26 SENSO TVE NI aa 26 OPETAN FIII D O ASA A AA AAA AA 26 MEIST ENEE ONI rerio nene i E ARA AAA A ERA RA A AA A id righ een eet ded Rh 26 SENSOR AAC di tas is 27 TV PICA SIONES AA SAA AAA AAA AA AAA 27 AAN e Ngaa i NEE EAEE E E A ais 28 CONDITION CODE SUMMAR l a pp aaraa a eds 29 BR REIN e A A EEEE A EE AA AAE no led 30 TECHNICAL SUPPORT AND ORDER PLACA o cad 30 ROLAND EJUPI aaea eE T AE tdi 30 TECHNICAL SUPPORT ia a tedio 30 PRODUCT NUMBERS amp ACCESSORIES 00cccccccccccccccnnnnnnnnnnnnn rr rr nr rre nena anna RRA RRE RRE RRE nn nnnnnnnnnnnnnnn na 31 PROCOMPANFINTT ENCODER amp SENSORS acia eahannad aie vedswenaaiwaueladaninnneiuxs 31 ACCESSORIES as 31 PLACING ORDERS RUN 32 SPECTFLCATION Sica 33 1 A A A O 37 INFINITI HARDWARE COPYRIGHT NOTICE oooonnncccnnnnnncncnnnrnnnnnnnnnnnnn nnmnnn nnna 40 ProComp Infiniti Hardware Manual 6 Introduction The ProComp Infiniti encoder is an eight 8 channel multi modality device for real time computerized biofeedback and data acquisition It has 8 protected pin sensor inputs with two channels sampled at 2048 s s and six channels sampled at 256 s s The ProComp Infiniti encoder is able to render a wide and comprehensive range of objective physiological signs used in clinical observation and biofeedback The ProComp Infiniti basic package includes the following hardware z One eight channel ProComp Infiniti encoder unit
9. Condition Code Summary The ProComp Infiniti encoder communicates various conditions to the user by means of flashing its two LEDs The following table summarizes what these flashes mean Encoder Action or Mode Flash sequence Interpretation Normal operation BLUE solid on Everything normal e g just turned on BLUE slow flash Low battery warning starts when 20 to 30 minutes of battery life remain BLUE fast flash 1 second then between 2 and 5 slow flashes repeated indefinitely Impedance Check command hold BLUE off then 2 quick flashes power switch for 3 seconds and repeated indefinitely ongoing Impedance Check Self Calibration command hold BLUE off then 3 quick flashes power switch for 10 seconds and repeated while Self Calibration ongoing Self Calibration is occurring Internal error Unit will not function Return unit for service Impedance Check mode Self Calibration mode Self Calibration at end BLUE changes to steady on Successful self calibration BLUE fast flashing about 1 Failed self calibration second then steady on Compact Flash just inserted WHITE Long blink about 1 second then flashes 1 to 10 times WHITE Long on period about 1 second then no blinks WHITE Fast flashing about 1 second then between 2 and 6 slow flashes The entire sequence is repeated 3 times Compact Flash Record Command WHITE turns on and stays on hold p
10. To rebuild the Compact Flash for use in the encoder follow these steps 1 Place the CF card in the CF Card Reader connected to the PC 2 From the Infiniti software s main screen select Compact Flash Options and then Rebuild Compact Flash 3 Select the Create option and press OK Wait for the operation to complete This may take some time especially for larger Compact Flash cards 4 After the operation has concluded you may remove the CF card from the reader It is now ready for use in the encoder However you may wish to first initialize the Compact Flash card so that the encoder s date and time will be set see below Attention Never use a CF card previously used with other devices for recording with the ProComp Infiniti Thought Technology s rebuilding process creates a single file on the CF card Do not delete or overwrite this file or attempt to create any other files on the Compact Flash once it has been formatted If the Thought Technology format file is overwritten or deleted the CF card may need to be re formatted first to it s original PC format using the Format facility of your PC s operating system If you need to do this choose the FAT16 file system for best results After doing this use the Thought Technology rebuilding option again If you are unsure how to do this operation please contact technical support for more information ProComp Infiniti Hardware Manual 11 Encoder Time Setting The enco
11. of expansion between the thorax and abdomen ProComp Infiniti Hardware Manual 26 Sensor Placement The sensor consists mainly of a long Velcro strap that is stretched around the client s chest or abdomen When placing the sensor on the client ask for a full expiration and quickly fasten the strap with just a small amount of tension at that time The sensor should not be loose when the client breathes out completely The sensor s rubber tube and circuit box should be placed in the front as illustrated The sensor can be placed on top of clothing if not too bulky Note The tube is made of natural rubber and some people may be allergic to rubber Please verify your client s allergic conditions before using the respiration sensor When using two sensors strap one around the client s chest just above the breasts and one at the level of the navel Avoid storing the sensor with the tubing stretched as this will shorten its usable life Typical Signal There are many breathing patterns that can be recognized but there is actually no typical waveform for the respiration signal Commonly there is a fast rise that slows near the top of the breath and this is followed by a fast fall that slows near the end of the breath The breathing pattern will alter itself as the person focuses on a task talks or falls asleep 575 a75 e y T375 3H Resp 1 42 ProComp Infiniti Hardware Manual 27 Self Calibrat
12. on signs of corrosion They must be cleaned with an alcohol wipe after each use Disposable Electrodes Before an EMG or EKG sensor can be placed on the client you must snap on a set of disposable electrodes Three types of electrodes are available from Thought Technology Triodes Single Strip and Uni Gels The Triode and Single electrodes are dry while the Uni Gel electrodes are covered with a thin layer of conductive gel to enhance their contact with the client s skin All three types are designed like Snap on buttons The Triode electrodes can be snapped directly onto the sensor head The Single and Uni Gel electrodes are designed to be used with extender cables Skin Preparation Many physiological monitoring devices will require you to prepare the client s skin before positioning the sensors Because they have high input impedance the Thought Technology sensors can be utilized with little or no skin preparation depending on the purpose of your intervention For most biofeedback applications simply cleaning the skin with a bit of cotton and rubbing alcohol is sufficient to ensure good sensor readings For EEG neurofeedback and muscle function assessments using EMG we recommend that you use abrasive paste and conductive gel Since body hair can form an insulating layer between the skin and the electrode surface be careful not to place the electrodes over hairy areas In some cases shaving may be required ProComp Infiniti Har
13. placed on the skin s surface The MyoScan Pro ABS TT sensors can be used on any input the MyoScan Pro l ae ER automatically converts this signal to a root mean square RMS par pl signal an analog rectification is done inside the circuitry The CAS result is a slower signal which can be sampled at a low rate eras 0 without distortion MyoScan sensors are used on inputs A or B O Y which sample at 2048 s s The sensor captures raw EMG at frequencies up to 500 Hertz Hz and maintains the signal in its faster RAW format Operating Principle EMG measures muscle activity by detecting and amplifying the tiny electrical impulses that are generated by muscle fibers when they contract Since all the muscle fibers within the recording area of the sensor contract at different rates the signal detected by the sensor is a constantly varying difference of potential between its positive and negative electrodes The number of muscle fibers that are recruited during any given contraction depends on the force required to perform the movement Because of this the intensity amplitude of the resulting electrical signal is proportional to the strength of contraction ProComp Infiniti Hardware Manual 17 Measurement Unit The MyoScan Pro sensor s active range is from 20 to 500 Hz It can record SEMG signals of up to 1600 microvolts uV RMS On the back of the sensor there is a small switch with three positions 400N 1600W and 400W In the 400W
14. readings from the encoder are not valid while impedance checking is occurring and any traces will be replaced by signals used in the impedance check process ProComp Infiniti Hardware Manual 21 Attention A set of EEG Z sensors all connected to the same encoder will not interfere with each other s impedance check readings as they are commanded to perform their impedance checks sequentially and are designed to disconnect from the client while not checking impedance However sensor types other than EEG Z that are electrically connected to the client can potentially affect the impedance readings obtained from EEG Z sensors If possible leave other electrically connected sensors such as EMG EKG SC unconnected during EEG Z impedance checking or else perform a test to see whether their connection causes a significant change in the reading Sensors even EEG Z sensors attached to the same client but connected to another encoder also have the potential to affect EEG Z readings In particular do not attempt to perform impedance checking on two encoders on a single client at the same time Here again test for the effect of other connected sensors if you are concerned about receiving precise impedance readings 10 20 EEG Electrode Placement System To get a full understanding of the standard 10 20 EEG electrode placement system please refer to professional publications on EEG This section will only give you an introduction on the subje
15. 403 SA8950 SA8952 T8720M T8730 T8725 18735 18740 13402M T3404 T3425 SA2306 T3450 T3470 T3480 SA5000 14 SA5000 16 SA5000 18 SA5010 14 SA5010 16 SA5010 18 PROTECTED PIN REPLACEMENT SENSOR CABLE CABLE PP SENSOR 96 144CM CABLE FIBRE OPTIC 1FT CABLE FIBRE OPTIC 10FT CABLE FIBRE OPTIC 15FT CABLE FIBRE OPTIC 25FT ELECTRODE EXTENDER CABLES THREE PACK PRO SB PRO SB DUAL SENSOR EXTENDER CABLE PROTECTED PIN EEG EXTENDER CABLES BIPOLAR EEG EXTENDER CABLES MONOPOLAR MONOPOLAR LINK EAR EEG 4 LEAD EEG EXTENDER CABLE PP TO DIN TRIODE DISPOSABLE ADHESIVE ELECTRODES X 100 SINGLE DISPOSABLE ELECTRODES X 300 UNI GEL ELECTRODES X 100 HEADBAND EMG EEG PASTE TEN20 114 g 4 oz NUPREP EEG SKIN PREPPING GEL 114 g 4oz ELEFIX ELETRODE GEL 180 g 6 3 oz AQUASENSE SMALL ARM PROTECTOR AQUASENSE MEDIUM ARM PROTECTOR AQUASENSE LARGE ARM PROTECTOR AQUASENSE SMALL LEG PROTECTOR AQUASENSE MEDIUM LEG PROTECTOR AQUASENSE LARGE LEG PROTECTOR ProComp Infiniti Hardware Manual 31 Outside USA Tel 514 489 8251 Fax 514 489 8255 In USA Toll Free Tel 1 800 361 3651 E Mail mail thoughttechnology com ProComp Infiniti Hardware Manual Placing Orders 32 Specifications MyoScan Pro EMG Sensor SA9401M Size Approx Weight Input Impedance Input Range Sensitivity Bandwidth Accuracy 37mm x 37mm x 15mm 1 45 x 1 45 x 0 60 25g 1 oz 1 000 000MQ in parallel with 10 pF 0
16. Electrical Interference When performing a biofeedback session it is best to avoid placing the ProComp Infiniti near the computer display monitor or any other electrical device where it can be exposed to electromagnetic fields We recommend that you try to keep the encoder within the client s natural electrical field In most cases you can do so by fastening the belt clip to the client s waist ProComp Infiniti Hardware Manual 14 Caring For The Fiber Optic Cable A fiber optic FO cable is used for transmitting the sensor data to the computer Although this technology provides maximal electrical isolation signal fidelity and freedom of movement some care has to be taken when handling the fiber optic cable as it is much less flexible than a regular electric wire Winding Or Bending It is most important to avoid bending the cable too sharply In a FO cable information travels as light impulses Any kink along the optical fiber may partially or completely block the light s path and thus interrupt the flow of sensor information to the computer When using your system try to keep the extra length of cable wound in a loose loop no smaller than about 4 inches 10 cm in diameter Shorter Length Of Fiber Optic Cable Although we ship the ProComp Infiniti system with one short and one long FO cable the short length should only be used as a troubleshooting tool because it is too short and forces the ProComp Infiniti to stay too close t
17. ProComp Infiniti Hardware Manual Thought Technology Ltd 2180 Belgrave Avenue Montreal QC H4A 2L8 Canada Tel 800 361 3651 514 489 8251 Fax 514 489 8255 E mail mai thoughttechnology com Webpage http www thoughttechnology com The Manufacturer System Name System Device Name Device Classification Rule s used for classification Notified Body ProComp Infiniti Hardware Manual Thought Technology Ltd 2180 Belgrave Avenue Montreal Quebec Canada H4A 2L8 ProComp Infiniti System T7110M T7120M T7150M T7160M T7170M T7520M ProComp Infiniti Encoder SA7500 Class 1 with a Measuring Function Annex IX rule 12 SEMKO 0413 e Type BF Equipment A e Internally powered equipment e Continuous operation o Read Instruction Manual CAUTION e US Federal Law restricts this device to sale by or on order of a physician or any other practitioner licensed by the law of the state in which he or she practices to use or order the use of this device WARNING e Do not operate Active Sensors within 10 feet of an operating cellular phone similar radio transmitting device other powerful radio interference producing sources such as arc welders radio thermal treatment equipment x ray machines or any other equipment that produces electrical sparks e All encoders are totally isolated from line 110 or 220VAC power due to battery operation and fiber optic connections to computers
18. aa a area ehs pause aaa ai ne ealan eae wae ate uel aso am netic mate aes A aie 18 ELECT ROCARDIOGRAPHY CEKG Jia 19 Y NA AAA O sepa aaa ames ued et Ass ola Gace ae eae eee ae 19 operating PICO A ena eda a 19 MEIS OMEN OIC aid ii ao 19 Sensor AICM Ed AAA AAA TEATRAL AI AAA ae 19 EG aE PA A 20 ELECTROENCEPHALOGRAPHY EEG FLEX PRO AND EEG Z cccecceceeecueeueveevevcneaveneavaueavaneavaneansnvanenvarsneanans 20 SENSO DVO etir A AT A ASA AN AS 20 ODIN FINOP E AAA a A A A ia 20 Measurement CINE 0 AAA A AA AAA A AAA A 20 SONSOF FICA ATA AAA a a thee 21 IMPEGNO ENCIENDA AAA 21 10 20 EEG Electrode Placement SVSCCIN ccneceecunernerecensnsecunusserecenussetecusensecsansennaruaansensnusensannsenies 22 TVDICA SON 2 A A a 23 SKIN CONDUETANCE SC FIG PRO Sid ia did 24 O A A 24 OPINO PHN ODIO iva A A A A a 24 MEOISTIFENMENAINNE AA A AAA AAA AAA AAA A A 24 SONSOF HACEN E A A A A RA A AAA E NO 24 TV PICA feo lo E PA ei S EE CO TAO 24 PERIPHERAL TEMPERATURE sica cit ati aa 25 SGO IV DO ii ia 25 OIT A e eee 25 MESSI NERO RA AAA AAA AA 25 SENSOR PICO AAA alias AA AE AAA 25 TV DICH SIG AA ANA AAA AAA AER AAA AAA AAA ES AAA AAA 25 ProComp Infiniti Hardware Manual 5 BLOOD VOLUME PULS Eruanna a a aaa e es eRe 25 SNS TYDE an ET EE E E ets N A N 25 PPr ING FIIN O EEEE E A TE AA E E O TAA A 25 Measurement ODI arrana ee aeo A A ANS AAA AAA E EAS a ERA 26 Sensor PIGCCINICIL 1625s iis ich aie tian ae edt sea tae ieee eee a a ees 26 TV PICA SIGMA ica AE
19. acquired by this equipment and be able to detect anomalies in the acquired signal that could interfere with treatment effectiveness Depending on the importance of signal integrity it may be advisable to continuously monitor the raw signals in time and or frequency domain while the device is being used for biofeedback or other purposes If anomalies are observed on acquired signals and if you suspect a problem with electromagnetic interference contact Thought Technology for a technical note on identification and remediation MAINTENANCE AND CALIBRATION e Wipe encoder with a clean cloth e Factory testing and calibration ensure equipment accuracy and frequency response The user may invoke a self calibration function that will recalibrate certain device parameters see section in manual Contact Thought Technology for factory re calibration if necessary STORAGE e Store in its original case at up to 90 humidity 30C TRANSPORTATION o Transport in its original case Guidance and manufacturer s declaration electromagnetic emissions The Infiniti system is intended for use in the electromagnetic environment specified below The customer or the user of the Infiniti system should assure that it is used in such an environment Compliance Electromagnetic environment guidance RF emissions Group 1 The Infiniti system uses RF energy only for its CISPR 11 internal function Therefore its RF emissions are very low and are not lik
20. batteries in the slots observing the polarity as illustrated Please note that a diagram of the correct battery polarity is embossed on the inside surface of the compartment Closing The Compartment Slide the door back into the ProComp Infiniti case gently pushing it in until you feel the click of the locking mechanism Keeping An Eye On The Battery Level Since each sensor draws a small amount of power from the batteries when connected to the Procomp Infiniti it is better to connect only the sensors that are going to be used for a session before you start recording this will ensure maximal battery life Most Thought Technology software applications will display a battery power indicator we recommend that you replace the batteries as soon as this indicator falls below about 50 of the battery power COMPACT FLASH The compact flash CF is used as an alternative storage medium for ARG data being recorded by the encoder The CF card is a small square a approximately the size of a box of matches and is inserted into the rear surface of the encoder with its label facing up The encoder is delivered with a protective insert in the compact flash slot To remove it push the button next to the slot once to eject the button then push again to remove the card pushing the button back in The CF card can then be inserted you will notice that the CF card can only be inserted one way into the encoder to protect from incorrect insertion When inse
21. ct Since no two people have the same head size and shape the first step in defining correct electrode locations is to make some measurements Two measures are required The distance between the supra nasal grove nasion and the little bump in the mid occipital region inion and the distance between the two pre auricular notches this is the dimple just in front and slightly above the tragus Once these two distances are measured you need to find the spot over which the two lines bisect at their mid point Calculate 50 of both measures and find the point on the client s head where they cross over That point is called Cz and it is the first 10 20 location that you need to identify Use a washable marker to mark the spot Fre a Pre auricular oe auricular notch notch From Cz you can easily find C3 and C4 by moving laterally towards each ear along the imaginary line that you drew between the pre auricular notches C3 is 20 of the full distance towards the left and C4 20 of the full distance to the right C3 and C4 are also very important points for EEG biofeedback ProComp Infiniti Hardware Manual 22 To identify the other locations please refer to the illustrations 20 to the left of C3 you will find T3 20 to the right of C4 you will find T4 There should be 10 of the whole distance left on each side to the pre auricular notches Similarly find Fz and Pz 20 from Cz along the nasion inion line and then Fpz and O
22. der has an internal clock to enable time and date stamping of the sessions recorded onto the CF card The encoder will retain its time and date when batteries are changed if the fresh batteries are inserted within 30 seconds of removing the old ones If the time is lost it will reinitialize to January 1 2000 As part of the CF formatting procedure you may wish to set up the date and time for the encoder so that sessions can be time stamped for future reference To set the date and time follow these steps Insert the CF card into the CF card reader If not already selected from the Infiniti software s main screen select Compact Flash Options Then select Set Compact Flash Date Time Specify a date and time a brief period in the future when you will insert the Compact Flash in the encoder Press OK and wait for the operation to complete If off turn on the encoder Remove the CF card from the reader and as close as possible to the specified time insert it into the encoder The time setting will immediately take effect and will set the encoder s internal clock to the specified date and time Questions And Answers About Compact Flash Time Setting Question Answer Question Answer Question Answer My batteries have died in my encoder Will I need to reset my encoder time and date No Old batteries even if they are too dead to operate the encoder will keep the clock running for a long time When you do change y
23. dware Manual 16 Sensor Care Triodes And Extender Cables The EMG sensor can be used with a Triode electrode snapped onto the sensor head or with Single electrodes individually snapped onto each of the three leads of an extender cable If you have to alternate between the two methods make sure to leave only one set of electrodes connected to the sensor at any one time Forgetting to remove the unused electrodes could degrade the quality of the recorded signal because of extra susceptibility to noise Equipment Storage As a general rule we recommend that you remove any electrodes from the sensor heads and extender cable leads when you are done using your equipment To avoid the possibility of corrosion of the snap connectors only use Thought Technology triode s with metal snaps Using one part silver Silver Chloride electrodes promote corrosion and may void your warranty Many electrodes are coated with a very conductive substance that can cause the sensor s metal parts to corrode if they are left in contact with it for long periods of time Also please be careful when unsnapping electrodes not to damage the wires Avoid twisting and pulling on the wires by holding the sensor head the connector itself or the extender cable s rounded snap SURFACE ELECTROMYOGRAPHY SEMG Sensor Types The MyoScan and the MyoScan Pro are the surface EMG SEMG MyoScan Pro sensors for the ProComp Infiniti device SEMG is recorded from a a sensor that is
24. e reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying and recording or otherwise without the prior written permission of Thought Technology Ltd ProComp Infiniti FlexComp Infiniti BioGraph are trademarks of Thought Technology Ltd copyright Thought Technology 2003
25. eight 25g 1 oz Input Impedance 1 000 000MQ in parallel with 10pF Input Range 0 200uVems Sensitivity lt 0 1uVems Bandwidth 2Hz 1kHz CMRR gt 130dB Accuracy 0 3uVems 5 of reading 10 C to 40 C Temperature Sensor SA9310M Length Approx 152cm 60 Weight 10g 0 3302 Temperature Range 10 C 45 C 50 F 115 F Accuracy 1 0 C 41 8 F 20 C 40 C 68 F 104 F HR BVP Flex Pro Sensor SA9308M Length Approx 20mm x 34mm x 10mm 0 72 x 1 33 x 0 41 Weight 20g 0 66 oz Input Range Unit less quantity displayed as 0 100 Accuracy 5 Respiration Sensor SA9311M Size Approx 132cm 52 Long Weigh 30g 1 0 oz Range 30 65 ProComp Infiniti Hardware Manual 34 Voltage Isolator SA9405 Size Approx 95mm x 57mm x 32mm 3 75 x 2 25 x 1 25 Weight 559 2 oz Input Impedance 1MO Input Range 0 200mV 0 2V 1 952V 3 648V Bandwidth OHz 40Hz Accuracy 5 and 1mV 0 200mV range 5 and 10mV 0 2V range 5 1 952V 3 648V range Skin Conductance Flex Pro Sensor SA9309M Size without electrode 3 5 cm 1 45 leads approx Size with electrode leads 15cm 6 0 approx Cable Length approx 127 cm 50 Weight approx 25 g 1 oz Signal Input Range 0 30 0 uS Accuracy 5 and 0 2 uS ProComp Infiniti Hardware Manual 35 ProComp Infiniti Encoder SA7500 Size approx Weight approx
26. ely to cause any interference in nearby electronic equipment The Infiniti system is suitable for use in all CISPR 11 establishments including domestic Harmonic emissions Not applicable establishments and those directly connected Voltage fluctuations Not applicable network that supplies buildings used for flicker emissions domestic purposes IEC 61000 3 3 Manual SA7510 Rev 3 0 ProComp Infiniti Hardware Manual TABLE OF CONTENTS INTRODUCTION sara iaa 7 CONNECTING THE ENCODER TT USB AND SENSORS cocccoccccoccncncncncocannnarananarannra rana 8 SETTING UP THE ENCODER UN Tocino 8 ENCODER DIP SWITCH SETUP o 9 BIA Y FICE AAA AAA AAA AAN pened A 10 COMPACT FAS Pic a A a ane te eee inde cae tee 10 COMPACT SAUS en guieuana NEO meade ated avadenia ai 11 ENCOTEF TINO SOLU aia aia eea re o eee 12 Questions And Answers About Compact Flash TiMe SettiNO ococcinonececconenesconenenesconenesennonenencanones 12 COMPACE FIASH SAG C a A coa 13 SATA CCOO AAA AAA AA AAA AA AAA A nied bi 13 PROTECTED RIN ota occ 14 EJECUCION A A A A OPS 14 CAMARGO TINE FIDE FOIE CAD A AAA A A EA A A AAA 15 SENSORS ona 16 GENERA LSENSO REA ios isos 16 SENSOR ANO non le lo A et 16 COMICE WIG TAC CHORES IMM A Aa 16 SENSOR CIAO a AAA AA AAA AAA ATA AT 17 SURFACE ELECTROMYOGRAPA Y SEMG as 17 SENSOR TY OS aiii lib 17 operating FINCI E A AT A wean T 17 Med SOINE O EEIE A AAA AAA 18 SENSO AICM AAA AN AA A EA E AAA 18 TWA E SONT AAA AAA ANA AA 18 LO ONO A ah
27. eptacle may cause the unit not to operate make sure that both ends of the cable are fully inserted into their receptive jacks and the nut is tightened firmly e Make sure to remove electrodes from sensor snaps immediately after use e Do not plug third party sensors directly into instrument inputs Plug only Thought Technology ProComp Infiniti Hardware Manual Active Sensor cable connectors into instrument inputs All electrodes and third party sensors must be connected to active sensors either directly or through an adapter e Remove batteries when the device is not being used for an extended period of time Please dispose of battery following local regulations CONTRAINDICATIONS o None INTENDED PURPOSE e Biofeedback Relaxation amp Muscle Re Education purposes NOTE e No preventative inspections required maintenance must be performed by qualified personnel e The supplier will make available upon request circuit diagrams component parts lists and description or other information required for the repair of product by qualified personnel e Ifa fiber optic or patient cable is damaged or breaks please replace e Due to the essential performance and intended use of the device testing for immunity to electromagnetic disturbances was not required and was not performed The device may be susceptible at levels below IEC60601 1 2 immunity test levels e The operator must be familiar with typical characteristics of signals
28. etailed description of the problem you are experiencing and your telephone fax number and email see form on the last page of this manual In the USA ship insured to Thought Technology Ltd Cimetra Industrial Park 8396 Route 9 West Chazy New York 12992 2718 USA In Canada and all other countries contact your dealer or ship insured to Thought Technology Ltd 2180 Belgrave Avenue Montreal Quebec Canada H4A 2L8 TECHNICAL SUPPORT For technical support please refer to the Thought Technology Ltd website at www thoughttechnology com for frequently asked questions If your support issue is not covered please e mail or telephone at the number below 514 489 8251 techsupport thoughttechnology com ProComp Infiniti Hardware Manual 30 Product Numbers amp Accessories PROCOMP INFINITI ENCODER SENSORS SA7500 SA7700 T9305M T9305Z T9306M SA9308M SA9309M SA9310M SA9311M T9401M 50 T9401M 60 SA9503M T9405 T9545 T9540 PROCOMP INFINITI ENCODER TT USB EEG FLEX PRO SENSOR EEG Z IMPEDANCE CHECKING SENSOR EKG FLEX PRO SENSOR BVP FLEX PRO BLOOD VOLUME PULSE SENSOR SC FLEX PRO SKIN CONDUCTANCE SENSOR TEMP FLEX PRO TEMPERATURE SENSOR RESP FLEX PRO RESPIRATION SENSOR MYOSCAN PRO EMG SENSOR 50H2 MYOSCAN PRO EMG SENSOR 60HZ MYOSCAN EMG SENSOR VOLTAGE ISOLATOR GONIOMETER ADAPTER FORCE SENSOR ADAPTER ACCESSORIES SA9385M SA9385 96 SA9450 SA9451 SA9480 SA9452 SA3
29. ge is applied through two electrodes usually strapped to two fingers of one hand in order to establish an electric circuit where the client becomes a variable resistor The real time variation in conductance which is the inverse of the resistance is calculated SC represents changes in the sympathetic nervous system As a person becomes more or less stressed the skin s conductance increases or decreases proportionally Skin conductance galvanic skin response and electro dermal response EDR are different terms for similar physiological measures Measurement Unit The standard measurement unit for conductance is called Siemens Skin conductance is measured in micro Siemens Some biofeedback systems display skin conductance in micro mhos um a mho is the inverse of an ohm which is the measure of resistance These two measures uS and um are equivalent Normal readings for skin conductance in a relaxed state are around 2 uS but readings can vary greatly with environmental factors and skin type Sensor Placement The skin conductance sensor has two short leads that extend from the circuit box At the end of each lead is an electrode snap similar to those on the extender cables The GSR sensor uses two replaceable electrodes that are sewn inside Velcro straps The electrode strap must be fastened around a finger tightly enough so the electrode surface is in contact with the finger pad but not so tightly that it limits blood circulation N
30. hree standard DIN connectors is Monopolar available o Prior to placing EEG electrodes on a client s head it is recommended to gently rub the placement areas and ear lobes with a bit of abrasive paste This will remove the surface layer of dead skin and improve the electrode s contact with the skin If you are using the EEG Z sensor you can put the encoder into impedance checking mode in order to gauge the effectiveness of such skin preparation see below under Impedance Checking To place the EEG electrodes fill the tin cups with a generous amount of EEG conductive paste and press it down over the desired spot until the cup is firmly in place When you do this some of the paste will be squeezed out of the small hole in the cup that is expected You may want to help hold the cup down by pressing on it with a small cotton ball The cotton ball can be left on the client s head until you remove the electrodes The monopolar extender cable has one cup and two ear clips The cup should be placed on an active EEG site all standard sites for EEG are defined by the 10 20 EEG electrode placement system see next page The reference ear clip should be placed on the ear lobe on the same side as the active site and the ground ear clip on the ear lobe of the other side The monopolar placement frequently called referential placement is the most commonly used for EEG biofeedback A bipolar placement involves recording one signal between two acti
31. ing 9 CF Record is stopped by pressing and holding the button for about 1 second or until the white LED turns and stays on then release the button 10 If the CF is full or the CF is removed during the recording the unit will stop the recording itself With removal a maximum of 1 second of recording will be lost Refer to software instructions for detailed information on transferring sessions from the Compact Flash card to the computer Attention Do not remove the CF card without first stopping recording If the CF card is removed during recording generally only the last second will be lost however there is a small risk of greater data loss PROTECTED PINS A number of regulatory bodies like the FDA in the USA have adopted safety specifications requiring that all medical products for physiological monitoring be manufactured with electrode leads that have no exposed metal plugs For this reason the ProComp Infiniti encoder and all our sensors use specially designed connectors that have all metallic surfaces recessed within the plastic casing These connectors with protected pins require some care when plugging and unplugging the sensors to the ProComp device or the extender cable to the sensor head When connecting a sensor be sure to properly line up the guiding dot on the top of the plug with the notch in the encoder s input socket Forcing the plug into the jack in any other position may damage your equipment
32. ion Over long periods of time or when moving between environments with very different temperature ranges self calibration can increase the accuracy of your device The encoder contains a built in voltage reference that possesses good temperature stability and can be used to recalibrate the unit Each channel s gain and offset will be checked and set to be within the specifications listed at the back of this manual To Perform A Self Calibration Ensure that the encoder s temperature is stable and is close to the temperature at which you plan to use it Since certain parameters exhibit temperature drift self calibrating the encoder at or near the temperature at which it is used can cancel out any drift that has occurred from another temperature For best results replace the batteries if the encoder is showing a low battery warning Unplug all sensors from the encoder as well as any Compact Flash module Press and hold the power switch for 10 seconds or until the blue LED blinks quickly in a sequence of 3 flashes Release the power switch as soon as you see the three flashes Self calibration will then be initiated If you continue to hold the button too long it will not occur The self calibration will continue for about 20 30 seconds at which point the blue LED will stop flashing and light up steadily as before If the blue LED flashes quickly for about 1 second before lighting up steadily this indicates that the self calibration failed
33. it is connected to one of the host computer s USB ports It receives the data arriving from the encoder in optical form and converts it into the USB format to communicate with the software Please note some hardware features may not be supported by all software programs Consult the software manual for a full list of features supported Please note some software programs will not function with a TT USB but require use of a PRO SB in its place ProComp Infiniti Hardware Manual 7 Connecting the Encoder TT USB and Sensors SETTING UP THE ENCODER UNIT Cut a convenient length of fiber optic cable cleanly and evenly using a sharp blade or use the whole length rolled up out of the way IMPORTANT Winding the fiber optic cable in a loop smaller than 4 inches 10 cm or bending it sharply will damage the cable 1 Plug the USB cable connected to the TT USB interface unit supplied with the USB connector on the computer being used If using the BioGraph 2 1 software please use the Pro SB in place of the TT USB as described in the BioGraph 2 1 software manual 2 Insert one end of the fiber optic cable into the optical receiver jack on the rear face of the TT USB Interface unit and the other into the optical transmitter jack on the front of the ProComp Infiniti encoder Before inserting the cable it may be necessary to loosen the jack heads by turning them counter clockwise 3 Ensure that both ends of the optical cable are in
34. nology may refuse to honor this warranty if the tamper evident seal located in the battery compartment is broken IMPORTANT Remove dead batteries promptly to prevent corrosion damage Optional Extended Warranty Please contact Thought Technology Ltd for further details Pay Repair Return Form Be sure to call for authorization before returning any equipment Remove or copy this form and include it with the unit s Include copy of original invoice and return to the address in the Returning Equipment section Name Company Address Phone No Fax No Date Purchased From Whom Model Name Serial Number Problem Infiniti hardware Copyright Notice This hardware contains proprietary embedded software code which is the property of Thought Technology Ltd it is provided under a license agreement containing restrictions on use and disclosure and is also protected by copyright law Reverse engineering of the software or the resulting output data stream is prohibited Due to continued product development the embedded software may change without notice The information and intellectual property contained herein is confidential between Thought Technology Ltd and the client and remains the exclusive property of Thought Technology Ltd If you find any problems in the documentation please report them to us in writing Thought Technology Ltd does not warrant that this document is error free No part of this publication may b
35. o conductive paste should be used on the electrodes Remember to clean the electrodes with an alcohol wipe between clients These AG AG CL electrode snaps should be replaced after about 50 uses or when wear is apparent Typical Signal The type of signal recorded from a skin conductance sensor shows relatively rapid increases and slower decreases ProComp Infiniti Hardware Manual 24 PERIPHERAL TEMPERATURE Sensor Type To measure peripheral skin temperature with the ProComp Infiniti device use the Temp Flex Pro sensor Operating Principle The temperature sensor is called a thermistor This device converts changes in temperature to changes in an electrical current The body s peripheral temperature as measured on its extremities will vary according to the amount of blood perfusing the skin This in turn is dependent on the client s state of sympathetic arousal As a person gets stressed their fingers tend to get colder Relaxation training involves learning to voluntarily increase the finger temperature Measurement Unit Temperature is measured in degrees Fahrenheit or degrees Celsius Sensor Placement The temperature sensor can be strapped to the dorsal or palmar side of any finger or toe using the short strip of Velcro that is provided with the sensor Remember to clean the thermistor bead with an alcohol wipe between clients Typical Signal Peripheral temperature changes are fairly slow and do not have much ampli
36. o the computer Should you suspect a problem with the long FO cable replace it with the short one and see if you can establish a good connection If the system works well with the short cable then you probably have a break in the longer one Holding it lightly between your thumb and index fingers feel along the whole length of the cable searching for kinks If you do find a break the optic fibers may be too damaged to let the light pass properly Using a sharp carpet cutter type blade you can slice the FO cable into shorter unkinked bits We do not recommend using scissors because they make a V shaped cut that may impede the data stream TT USB And Encoder Connections The FO connector on the ProComp Infiniti and the TT USB Interface are susceptible to breaking when they are hit directly This can occur if the ProComp Infiniti is dropped on the floor Whenever possible fasten the device to the client or to a chair using the belt clip On the TT USB Interface you will also notice a hole labeled Switch This plug is for connecting external devices such as a muscle stimulation device when you want to use the switch control feedback option in the software The TT USB receives the data from the ProComp Infiniti encoder via the fiber optic and sends it on to the computer via the USB port It has four connectors 1 Fiber Optic Connector Connects to Fiber Optic Cable from encoder 2 Mini USB Connector Connects via USB cable to comp
37. ond for between 1 and 2 seconds then blinks slowly a number of times indicating an error code The error code blink is repeated a total of 3 times The CF LED then goes out Start Recording White LED flashes to Insert CF Card in show remaining space Encoder when encoder is y switched on Push and Hold Button for 3 Seconds y Blue LED Turns Off y White and Blue LED turns on Release button lt Recording starts gt y Push and hold button for 3 sec y Recording Stops 1 CF Recording is started by pressing and holding the button for about 3 seconds or until the white LED turns on 2 First the blue LED will turn off and releasing the button during this period will cause the encoder to turn off 3 After the white LED turns on the button may be released ProComp Infiniti Hardware Manual 13 4 At this point the white LED turns off then outputs the same sequence as described above 5 CF Record Command is entered if a CF is inserted recognized as a valid CF and at least one sensor has been plugged in 6 If the CF is recognized but there is no sensor plugged in the white LED will never turn on 7 During the recording the CF LED blinks to indicate the percentage of the total CF storage space which remains available for recording 8 It blinks in groups of 1 to 10 flashes 1 flash 10 remaining 10 flashes 100 remain
38. our batteries be sure to put in the fresh ones within 30 seconds of removing the old ones in order to retain the date and time setting My batteries died a number of weeks ago and they were removed for longer than 30 seconds How do I reset the time Follow the directions above under Encoder Time Setting I recorded some sessions after the battery was removed for more than 30 seconds so the encoder time may have been lost What date and time will they have The date and time will be marked as invalid and will not be available for these sessions For each session recorded with an invalid time the software will prompt you for the starting time of the session So if you know that the time is invalid on the encoder be sure to note the starting time of each session if this information is important ProComp Infiniti Hardware Manual 12 Compact Flash Usage When a Compact Flash module is inserted in the unit or the unit is turned on with a CF inserted and is recognized as a valid Compact Flash the CF LED turns on for about 1 second then blinks in a single burst a number of times to indicate available space The CF LED then goes out awaiting a switch command If no space remains on the Compact Flash only the initial 1 second blink is performed This sequence is replayed when the dipswitch is changed Memory Remainina 1 Sec If the card is not recognized as a valid Compact Flash the CF LED blinks quickly about 10 times per sec
39. ower switch until white as long as button is pressed LED turns on about 2 seconds then flashes 1 to 10 times ProComp Infiniti Hardware Manual Compact flash recognized and ready to record with each flash indicating 10 of remaining capacity e g 4 flashes indicate 40 Compact flash recognized but no space left zero blinks Compact Flash Error as follows 2 flashes internal error Return unit for service on Compact Flash function 3 flashes Compact Flash detected but not recognized 4 flashes Compact Flash not properly formatted Try reformatting Compact Flash 5 flashes Compact Flash format not supported Format Compact Flash under an earlier format version or upgrade encoder firmware 6 flashes inconsistent format data in Compact Flash Try reformatting Compact Flash Recording in process Each flash indicates 10 of remaining capacity e g 4 flashes indicate 40 29 Reference TECHNICAL SUPPORT AND ORDER PLACING Returning Equipment Be sure to call for an authorization number RA before returning any equipment Send the unit s postage prepaid and insured with proof of purchase to one of the addresses below If you are shipping from outside Canada or the USA to Canada mark the package Goods to be repaired Made in Canada to avoid unnecessary customs charges All customs and duties charges will be billed to you if incurred by sending the unit to the wrong address Provide a d
40. pressed state For use with the ProComp BioGraph Infiniti software and the TT USB interface Channels A amp B 2048 samples second Channels C to J 256 samples second For use with the BioGraph CardioPro or MultiTrace software and the ProSB interface Channels A amp B 256 samples second Channels C to H 32 samples second For use with the BioResearch software and the ProSB interface Channels A amp B 200 samples second Channels C to H 20 samples second For use with the Neurocybernetics EEG Spectrum NeuroCare Pro software and the ProSB interface Channels A amp B 256 samples second Channels C to H 32 samples second All other switch settings are reserved for later use ProComp Infiniti Hardware Manual Battery Placement Opening The Compartment Looking at the underside of the ProComp Infiniti device you will see a long door in the plastic enclosure Holding the encoder with the connectors facing you and with the door up push lightly down and back with your thumbs on the door to slide it open Attention The internal workings of the ProComp Infiniti encoder is not intended to be opened for repair except by qualified service personnel The tamper evident seal under the batteries in the battery compartment should not be removed or broken Thought Technology may refuse to honor the unit s warranty if the seal is broken Polarity When the compartment cover has been slid out place four AA
41. rode reference and the positive electrode signal Measurement Unit The EEG Flex Pro sensor measures microvolts uV raw A normal EEG signal recorded from the scalp will have an amplitude between 0 1 and about 200 uV The raw EEG signal is mainly used to evaluate the quality of the recorded signal and to do artifact rejection For biofeedback purposes clinicians will usually want to filter out subsets of the whole EEG bandwidth and measure the real time changes in the total power generated by all the frequencies in the subset Generally the most frequently observed frequency subsets are defined as High Beta 20 40 Hz Beta 15 20 Hz Sensorimotor Rhythm SMR 13 15 Hz Alpha 8 13 Hz Theta 4 8 Hz and Delta 2 4 Hz The frequencies above 40 Hz are interpreted as EMG noise from neighboring muscles ProComp Infiniti Hardware Manual 20 Sensor Placement The EEG sensor like the EMG and EKG sensors has three electrodes The positive one is called the signal electrode The negative one is the reference and the third one is the ground For EEG applications the regular Triode Single Strip or Uni Gel electrodes are not appropriate Thought Technology manufactures three types of EEG extender cables monopolar bipolar and monopolar with linked ears These extender cables have small tin cups at the end of each lead For clinicians who prefer using third party electrodes silver or gold a fourth type e wil of EEG extender cable with t
42. rted properly it will be flush with the encoder rear Follow the procedure above to remove this card when no longer required and re insert the protective insert CF cards require a CF card reader to transfer data to the PC The CF cards and reader can be purchased from most computer stores Before its first use in the encoder a CF card requires PC formatting using the file manager With the CF card inserted into the reader connected to the PC from Windows open the file manager and identify the Removable Drive Right click the removable drive and select Format ProComp Infiniti Hardware Manual 10 Select Format Type Full if using Windows XP select file system FAT not FAT32 and select Start When this is complete use the single master file build function provided by the Infiniti Software to finish the process FormatG ES Capacity Unknown capacity File system FAT S FAT NTFS FATS2 Volume label a Format options Quick Format 7 Enable Compression dese It is recommended that you temporarily disable any virus scanning utility while formatting the Compact Flash as this will considerably increase the speed of the process Attention Formatting CF Card with File System other than FAT will render it Inoperable Users should follow the appropriate procedures used for disconnecting peripheral devices when unplugging the Compact Card from ts PC reader Compact Flash Setup Compact Flash Rebuilding
43. serted all the way about of an inch 1 9 cm into the jacks and that the heads are screwed down firmly Wind excess fiber optic cable into a large loop approx 6 inches 15 cm Plug the sensors you wish to use into the input jacks on the front of the encoder unit Load four 1 5 V Alkaline or rechargeable Nickel Metal Hydride NiMH batteries into the encoder unit s battery pack check battery orientation being sure to respect the polarities indicated on the inside of the battery compartment 7 Push the encoder unit s power button for 1 second 8 Check that the encoder s blue ON indicator directly above the ON button is lit if it is not check the condition and orientation of your batteries 9 To switch the encoder OFF push the power button for 1 second and ensure that the blue indicator is no longer lit 0 Dice You may leave the encoder unit power ON if you intend to continue on to the following sections ProComp Infiniti Hardware Manual 8 ENCODER DIP SWITCH SETUP ProComp Infiniti encoder units have switches located on the bottom of the unit to the left of the belt clip The switches can be flipped up and down to a 1 or a 0 zero position with the aid of a paper clip or small pointed object With the front of the encoder facing up verify that the switches are set properly for the software in use Below is an example of the switch with the depressed position indicated The Black section represents the de
44. sor is very movement sensitive Although the sensor is not designed for such placement some users will tape it to an ear lobe with double sided adhesive tape Typical Signal The resulting BVP signal shows a typical strong rise with the systolic contraction followed by a somewhat Slower fall On some people the signal will also show a bump in the falling signal dicrotic notch which corresponds with the pulse of the diastolic contraction The peak to peak amplitude of the signal will increase and decrease with changes in sympathetic arousal m H25 gt 3G BV Pu 9 31 RESPIRATION AMPLITUDE RESP FLEX PRO Sensor Type The Respiration sensor is labeled Respiration Flex Pro Although the respiration sensor is frequently Called a strain gauge the Thought Technology sensor does not use an actual strain gauge to measure respiration Operating Principle The Respiration sensor is sensitive to stretch When strapped around a client s chest or abdomen it will convert the expansion and contraction of the rib cage or abdominal area to a rise and fall of the signal on the screen Measurement Unit The respiration signal is a relative measure of chest expansion The ProComp Infiniti does not generate standard units of measure for respiration From the raw signal waveform the software is able to calculate the respiration rate and relative breath amplitude If two sensors are used it is possible to compute the difference in amplitude
45. the MyoScan Pro sensor s offset NOTE Zeroing is not required for the MyoScan sensor which displays raw signals ELECTROCARDIOGRAPHY EKG Sensor Type To record EKG on the ProComp Infiniti use an EKG Flex Pro sensor Although a signal can be detected by applying an EKG sensor with Triode electrodes snapped on anywhere on the client s chest using an extender cable and Uni Gel electrodes greatly enhances the quality of the EKG signal Operating Principle EKG is similar to EMG The sensor detects and amplifies the small electrical voltage that is generated by the heart muscle when it contracts Measurement Unit The actual EKG signal is measured in microvolts uV Most often though the clinically useful measures are those that are computed from the raw EKG the heart rate HR and its inverse the inter beat interval IBI HR is measured in beats per minute B min or Bm and IBI in milliseconds ms Sensor Placement The standard EKG electrode placement requires that the AA negative electrode be placed on the right shoulder the j Be i positive electrode be placed on lower center or left side of z Nad h en i the chest xyphoid process and the ground electrode on op the left shoulder When a chest placement is impossible or ware too invasive it is possible to place the electrodes on the client s forearms For a forearm placement the negative lead should be placed on the right forearm while both the positive and gro
46. tor is responsible for ensuring the safety of any devices controlled or triggered by Infiniti equipment or software or by any software or hardware receiving data from Infiniti equipment Infiniti equipment must not be configured or connected in such a way that failure in its data acquisition processing or control functions can trigger patient feedback stimulus that poses an unacceptable level of risk e Use of any equipment in a biofeedback context should be immediately terminated upon any sign of treatment related distress or discomfort e Not to be connected to a patient undergoing MRI Electro surgery or defibrillation ATTENTION e Sensors damaged by static electricity are not covered under warranty To prevent static discharge from damaging the sensor and or encoders use anti static mats or sprays in your working area A humidifier may also be used to prevent static environments by conditioning hot dry air e Do not apply any electrode gel or equivalent directly on the sensor snaps Always use electrodes as a medium between the sensor and the client e Not for diagnostic purposes not defibrillator proof not for critical patient monitoring e To prevent voiding warranty by breaking connector pins carefully align white guiding dot on sensor plug with slot on sensor input e Sharp bends or winding the fiber optic cable in a loop smaller than 4 inches 10cm may destroy the cable e A fiber optic cable not fully pushed into its rec
47. tude To monitor temperature changes effectively it is necessary to have a fairly small vertical scale size 80 25 E 79 25 L 3F TEMP O 11 o 2a lo 31 BLOOD VOLUME PULSE Sensor Type To record blood volume pulse BVP on the ProComp Infinity use the BVP Flex Pro sensor Operating Principle BVP also called photoplethysmography bounces infra red light against a skin surface and measures the amount of reflected light This amount will vary with the amount of blood present in the skin At each heart beat pulse there is more blood in the skin blood reflects red light and absorbs other colors ProComp Infiniti Hardware Manual 25 and more light is reflected Between pulses the amount of blood decreases and more red light is absorbed This measure is an indication of vasomotor activity and of sympathetic arousal Measurement Unit The BVP signal is a relative measure It does not have a standard unit From the BVP signal the software can usually calculate heart rate and inter beat interval The amplitude of the BVP deviation can also be a useful measure Sensor Placement The BVP sensor is held pressed against the palmar surface of a fingertip with an elastic strap supplied with the sensor or a small length of adhesive tape You might have to adjust the pressure on the finger until the maximal signal amplitude is reached Instruct the client to relax the hand and not to move it as the sen
48. und leads are placed on the left forearm ProComp Infiniti Hardware Manual 19 Typical Signal When the electrodes are placed as described above the typical signal should look similar to the illustration below A sharply defined upward R spike is expected by the software in order to calculate the heart rate properly 50 ELECTROENCEPHALOGRAPHY EEG FLEX PRO AND EEG Z Sensor Type To record EEG on the ProComp Infiniti use an EEG Flex Pro or EEG Z sensor Unlike the EMG and EKG sensors the EEG sensor will not be able to detect a good quality EEG signal without the use of extender leads and proper electrodes The EEG Z is identical to the EEG Flex Pro it incorporates an automated three lead impedance checking function Operating Principle The EEG sensor detects and amplifies the small electrical voltages Ground that are generated by brain cells neurons when they fire gt Signal Similarly to muscle fibers neurons of different locations can fire F Cd at different rates The frequencies most commonly looked at for EEG are between 1 and 40 Hz The EEG sensor records a raw EEG signal which is the constantly varying difference of potential between the positive and negative electrode and the software processes that signal by applying a variety of digital filters to the 8 Le recorded signal in order to extract frequency domain Reference information Note EEG practitioners call the negative elect
49. uter 3 Switch Connector Connects via a 3 5mm jack acts as a computer controlled switch 4 Sync Connector Connects to optional sync cable to connect more than one TT USB interface together to synchronize data between units This input can also be used as an event input ProComp Infiniti Hardware Manual 15 Sensors GENERAL SENSOR FACTS Thought Technology sensors are completely non invasive and require little or no skin preparation when used for feedback purposes They include sensors specialized for electromyography EMG electroencephalography EEG electrocardiography EKG blood volume pulse BVP skin conductance SC respiration and temperature Sensor Anatomy The EMG EKG and EEG sensors have a positive a Ground negative and a ground electrode The signal is measured P Positive between the positive and negative The ground acts as a yo reference point and is used for filtering out electrical h NaS noise that is picked up from all three electrodes A E a 7 E __ Far eo o AE El p eae call Negative Contact With The Client s Skin Because some biofeedback sensors are applied directly to the skin or scalp some consideration must be given to using proper hygienic controls Whenever possible we recommend the use of disposable electrodes The electrodes on skin conductance sensors are replaceable but not disposable and must be changed after 50 uses to ensure an accurate reading or sooner
50. ve sites using one sensor For this placement you need to place the positive and reference electrodes on two standard EEG locations usually on the same side of the brain The ground electrode has an ear clip and should be placed on the earlobe of the opposite side Note bipolar is not the same as bilateral A bipolar placement provides only one signal A bilateral placement requires two sensors and gives two signals When you want to use two EEG sensors the electrode placements are similar except that you do not need to place both ground electrodes on the client you can leave one ground lead loose Impedance Checking When one or more EEG Z sensors are plugged into the ProComp Infiniti encoder and when the encoder is set up in ProComp Infiniti mode it is possible to invoke the sensors impedance checking function To do this press and hold the power button for approximately 3 seconds or until you see the blue LED blink quickly 2 times Then release the power button In this mode any EEG Z sensors that are plugged into the encoder are commanded one after the other to perform an impedance check The results may be read from the BioGraph Infiniti software to which the encoder is connected The impedance checking continues in round robin order as long as the mode is selected It takes about 1 second to check impedance on each sensor and the total time to complete the entire set of sensors depends on the number plugged into the encoder EEG
51. vely neutral site like a bony prominence preferably at an equal distance from the other two electrodes Typical Signal The typical waveform of an RMS SEMG signal is shown below mo 3C EMG 1 0 0 Changes in amplitude are directly proportional to the muscle s activity Normal resting values are usually around 3 to 5 uV they can be as low as 3 or even less for a profoundly relaxed muscle Zeroing Since the MyoScan Pro uses internal electronic circuitry to perform RMS rectification from within the sensor it is sometimes possible to observe slight offsets in sensor reading This is particularly obvious with older sensors and at low EMG values less than 5uV For that reason it will occasionally be necessary to zero your MyoScan Pro sensors Zeroing is done by connecting the zeroing plug to the ProComp Infiniti Hardware Manual 18 sensor box while recording plug it where the extender cable connects With the zeroing plug on the sensor the reading should be zero If your software displays a different value usually plus or minus a few microvolts then you should be able to correct this offset from within the software by using a zeroing function Keep in mind that each sensor may have different offset values If you zero a particular MyoScan Pro on a given display screen then you must always connect the same sensor to the same encoder input when you use that screen Remember to remove the zeroing plug after adjusting
52. z another 20 from Fz and Pz respectively There should be 10 left above the nasion and inion Al and A2 are the ear lobes F3 F4 P3 and P4 are at 50 of the distance between C3 Fz C4 and Pz Measuring a straight line between these points is acceptable Finally calculate the distances between Fpz and T3 Fpz and T4 Oz and T3 and Oz and T4 Calculate 10 on either sides of Fpz and find Fpi and Fp2 Calculate 10 on either sides of Oz and find O1 and O2 At 20 on either sides of T3 find F7 and T5 At 20 on either sides of T4 find F8 and T6 There are 10 20 placement maps that represent many more points For most biofeedback applications the ones listed above are all you should ever need to identify Typical Signal 25 o 25 Raw 1 40Hz SA A EEG 0 33 0 34 25 0 2 Beta 15 20Hz 34 Beta giga a o 3a 25 o 25 Alpha 8 15Hz 1A Alpha 0 33 I I 1 0 34 I I I j I 0 350 I j 1 I I j j 0 36 25 o 25 Theta A Hz 4A Theta o 33 lor3ar I I I I I I I ec I I I I I I lor36 25 o 25 Delta 2 4 Hz 2A Delta 0 33 praa I I I I I 0 351 I I I 1 I I 0 36 ProComp Infiniti Hardware Manual 23 SKIN CONDUCTANCE SC FLEX PRO Sensor Type The skin conductance sensor for ProComp _ a Infiniti is called SC Flex Pro gt po Operating Principle Skin conductance is a measure of the skin s ability to conduct electricity A tiny electrical volta
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