Allied Healthcare Autovent 4000 with CPAP User Manual
Contents
1. 203 x 244 mm 2 9 x 8 0 x 9 6 inches L762CPAP L760CPAP 73 6 x 241 3 x 244 mm 2 9 x 9 5 x 9 6 inches Operating Conditions 18 to 50 C 0 to 122 F Storage Conditions 40 to 60 C 40 to 140 F Shipping Conditions 40 to 60 C 40 to 140 F Latex Free This product does not contain latex 5 Features O AUTO CPAP VENTILATION p lt ao Ki i p nyon vA T Opn K S ltem Description Item Description N Adjustment and LED Adjustment and LED 8 Airway Pressure Gauge Alarm Silence Button a Adjustable Airway Pressure a Ventilation Mode Switch Relief Anti Suffocation Valve 21 Blender Ambient Air Filter Patient Circuit Connection ee O e 6 Patient Breathing Circuit The AutoVent 4000CPAP uses a breathing circuit that allows the user to switch between ventilation mode and CPAP without having to change breathing circuits The breathing circuit consists of a patient valve corrugated hose 36 in and a patient airway pressure line The patient valve has been designed with a 22 mm OD patient port to fit a standard mask and a 15 mm ID patient port to fit the standard endotracheal tube The patient valve contains a pressure balance diaphragm and a one way check valve The breath being delivered by the Autovent 4000CPAP is delivered through the corrugated tube to the patient valve The breath passes through the one way check valve and is diverted to the patient Prior to the check v2. Turn the Inspiratory time knob to the desired selection This function operates in the Auto Ventilation mode only e Select the desired Breaths per Minute BPM The Autovent 4000CPAP has a BPM range of 8 to 15 with a 2 second inspiratory time and a BPM range of 8 to 30 with a 1 second inspiratory time The American Heart Association Guidelines 2005 recommend a BPM rate of 8 to 12 for an adult and 12 to 20 for achild These are recommendations and you should always follow your physicians or medical directors instructions This function operates in the Auto Ventilation mode only e Select the desired Tidal Volume The AutoVent 4000 provides a Tidal Volume range of 200 600 ml at an inspiratory time of 1 0 sec and 400 1200 ml at an inspiratory time of 2 0 sec e Verify the Pressure Relief Setting This unit has a pressure relief range of 20 to 80 cm H20 The 60 cm H2O setting is a maximum regardless of vent settings The pressure relief setting will vary slightly with tidal volume setting Always verify the pressure relief pressure after the vent settings have been selected To check the actual relief pressure block the end of the ventilator breathing circuit and observe the reading on the airway pressure gauge This will be the maximum airway pressure You should hear an audible alarm as this maximum pressure Is reached Warning Preset tidal volumes may not be delivered when the maximum pressure limit is reached Inspiratory tim
3. a blocked airway Warning Should a mechanical problem develop or the patient appears to be experiencing difficulty breathing while connected to the unit disconnect the unit immediately and ventilate by other means Warning Units that have been stored at temperatures below 32 F 0 C may have a 20 shift in settings when they are operated at these low temperatures The readings will return to normal when the unit warms up Always monitor patients when the unit is used under these conditions 12 e 8 Pneumatic Alarms This ventilator contains several pneumatically operated alarms These alarms are the pressure relief and low source gas alarms The pressure relief alarm is an audible alarm that is actuated when the safety pressure relief setting is reached This alarm indicates that the maximum pressure setting has been exceeded and that gas has been released to prevent the pressure from reaching levels above this setting Warning Preset tidal volumes may not be delivered when the maximum pressure limit is reached Inspiratory times will remain constant however no additional tidal volume will be delivered after the pressure limit is reached Low source gas alarm is an audible and visual alarm that activates when the source gas pressure drops below 40 to 35 psi This is an indication that the unit will stop functioning soon and that the unit may not be delivering proper tidal volumes This alarm will first sound only during b
4. page 4 Warning This device operates with medical gases under pressure including oxygen Do not use this device while smoking or near open flames Do not use on this device or operate near flammable materials Caution In order to provide optimal performance check all gas supplies to assure only clean dry gas is used free of contaminants and or liquids The gas source may also be a high flow air oxygen blender meeting the flow and pressure requirements Use only the 100 oxygen setting on the Autovent if using an external blender e Connecting the patient breathing circuit Caution Due to the dual functionality of the Autovent 4000CPAP use only the recommended breathing circuit The correct ventilator breathing circuit must be used Using the incorrect breathing circuit may result in the unit not functioning properly Located on the right side of the unit is a 22 mm connection for a patient breathing circuit and a connection for the patient airway pressure line Install the corrugated tubing over the 22 mm connector so that it is on securely Install the small airway pressure line over the connecting fitting Both tubing will not pull off easily when properly installed e Select the proper inspiratory time The Autovent 4000CPAP has the options of a 2 second inspiratory time this is used on adults with tidal volume requirements of more than 600 ml and a 1 second inspiratory time this is used on children or adults
5. screwdriver The battery should be removed from the connector by gently prying off the snaps on the battery connector The old battery will then be replaced by a new 9 volt alkaline battery The snaps are keyed for polarity by size and shape The battery will go on only one way do not modify the battery clip to make a battery fit the connection Once the battery is installed on the connector turn the slide the battery and wires back into the battery compartment and replace the battery door Turn the alarm module on and verify the battery status light turns green The low airway pressure alarm will sound if the airway pressure does not reach the set value in 15 seconds The alarm module is now ready for use Always turn the alarm module off when not in use The alarm module does not turn off automatically Warning Do not try and recharge the battery 14 e 11 Cleaning The Autovent 4000CPAP should be cleaned after each use To clean the Autovent 4000CPAP keep the gas supply hose on the unit to prevent contamination of the oxygen circuit free of oil and petroleum based products The Autovent 4000CPAP has been designed to be water resistant but the unit cannot be submerged or sprayed down for cleaning Wipe the unit down with a damp rag containing a mild detergent to remove any residue from the surface Once the residue has been removed the unit should be wiped with isopropyl alcohol or a cold disinfecting solution to kill bacteria The u
6. water Equipment not suitable for use in presence of a flammable anesthetic mixture with air or with oxygen or nitrous oxide Suitable for continuous operation W NWW This equipment has been tested and found to comply with the EMC limits for the Medical Device Directive 93 42 ECN EN 55011 and EN 60601 1 2 These limits are designed to provide reasonable protection against harmful interference in a typical medical installation The equipment generates uses and can radiate radio frequency energy and if not installed 19 and used in accordance with these instructions may cause harmful interference to other devices in the vicinity However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference with other devices which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures B Reorient or relocate the receiving device B Increase the separation between the equipment B Connect the equipment into an outlet on a circuit different from that to which the other device s is connected Consult the manufacturer or field service technician for help 20
7. H20 CPAP pressure relief that will not allow the set CPAP pressure to exceed 20 cm H20 Due to the high gas flow rates of CPAP the main airway pressure relief should be set higher than potential CPAP pressures 60 cm H20 e Preset the CPAP function prior to patient connection o After the patient breathing circuit has been connected to the unit turn the CPAP control full counter clockwise lowest setting o Turn on the inlet supply gas o Adjust the CPAP control to achieve minimum gas flow e Connect the patient breathing circuit to the Patient Once the mask has been fitted to the patient observe the patient and adjust the CPAP pressure to the desired CPAP pressure The patient breathing circuit has been design to fit with an oxygen mask 22 mm outside diameter or endotracheal tube 15 mm inside diameter Follow the established guidelines for maintaining the patient s airway e Verify the patient is receiving good ventilation Once the patient is connected to the ventilator the patient should be observed to make sure they have adequate breathing Warning The CPAP function delivers Continuous Positive Airway Pressure to the spontaneously breathing patient and is used in place of and not in conjunction with forced ventilation The airway pressure gauge should be observed to make sure the patient is receiving proper CPAP pressure Always follow the physician s instructions A high reading with pressure limit alarm may indicate
8. Operation Manual S 168 547 001CPAP Life Rev C Support Products byAllied St Louis MO 63110 Phone 314 771 2400 Autovent 4000CPAP Pneumatically Powered Ventilator amp CPAP Generator Models L760CPAP L761CPAP L762CPAP L7 63CPAP Table of Contents Section Description Page 5 Features 6 6 Patient Breathing Circuit 7 7 Operatingthe Autovent 8 PneumaticAlarmms 15 9 Electronic Alarms 15 16 Models L760CPAP AutoVent4000CPAP Basic Model L761CPAP Autovent 4000CPAP with O2 Blender L762CPAP Autovent 4000CPAP with O2 Blender and Electronic Alarms L763CPAP AutoVent4000CPAP Basic Model with Electronic Alarms CAUTION Federal law restricts this device to sale by or on the order of a physician CAUTION The Autovent 4000CPAP should not be used on children with a weight of 20 kg 44 Ibs or less 1 Product Description The Autovent 4000CPAP is a pneumatically powered portable ventilator and CPAP generator The Autovent 4000CPAP in Ventilation mode delivers a time cycled constant flow breath The inspiratory time is constant and the breath volume is varied by changing the flow rate into the patient Various breaths per minute are achieved by varying the expiratory time The AutoVent CPAP models have all the functionality of the Autovent 4000 plus the added function of CPAP The CPAP function delivers Continuous Positive Airway Pressure to the spontaneously b
9. alve a portion of the breath is diverted to the top side of the balance diaphragm This action keeps the exhaust port of the patient valve closed during breath delivery and CPAP operation Once the breath is delivered the top of the diaphragm is vented and the patient can exhale In the case of CPAP operation the top of the diaphragm is kept at CPAP pressure level and anytime the patient side of the diaphragm exceeds the CPAP level the diaphragm lifts and exhausts the patients airway 7a Operating the Autovent Ventilation Warning This device should only be operated by qualified personnel under approved medical direction Warning Use only as directed Improper usage or unauthorized modification of this product may result in user or patient injury e Set the Ventilation Mode switch to Auto Ventilation mode In the ventilation mode the three breath control knobs are active and the patient will receive a ventilation cycle based on the setting of the three controls BPM Inspiratory Time Tidal Volume In addition the Blender control and the Manual breath control are also active e Connecting to an Oxygen Source Located on the left side of the Autovent and marked with an arrow is a diameter index safety system DISS fitting Connect a 50 psi oxygen source with a minimum of 40 LPM flow capacity to this fitting Warning Proper tidal volumes may not be provided with a gas source not meeting the specified requirements on
10. aths delivered in 1 minute 60 seconds You should have 9 to 11 breaths The inspiratory time will be 2 seconds and the expiratory time will be 4 seconds 4 Set the pressure relief to 60 cm H2O and occlude the output fitting or vent circuit output if used The pressure on the gauge cannot exceed 60 cm H2O it can be lower You should also hear an audible squeak to signal the pressure relief has actuated 5 Unblock the output and push and release the manual breath button and a breath should be triggered Units with the Optional Alarm Package follow steps 6 7 amp 8 6 Set the low pressure alarm to 10 cm H20 and the high pressure alarm to 30 cm of H20 and turn the alarm module on 7 With the ventilator output open you should get a low pressure alarm in about 15 seconds 8 After the alarm sounds occlude the ventilator output the low pressure alarm should clear and the high pressure alarm will sound Remove the occlusion and high pressure alarm will clear in about 25 seconds Units with CPAP follow step 9 9 Occlude the vent circuit output and adjust the CPAP pressure to the maximum setting by turning the knob clockwise The max pressure should be approximately 20 cm H2O Adjust the CPAP pressure to 10 cm H20 and the pressure should be stable Units with a blender follow step 10 10 Switch the unit to 65 O2 and verify the unit is still delivering breaths All unit follow steps 11 and 12 11 Turn the source gas off and you sho
11. ce pressure Electronic Alarms High Airway Pressure Alarm Range 15 to 80 cm H2O High Airway Pressure Alarm Accuracy 5 Low Airway Pressure Alarm Range 0 to 30 cm H2O Low Airway Pressure Alarm Accuracy 5 Alarm Sound Level is greater than 60 decibels Battery Life Greater than 40 hours at room temperature Oxygen Inlet Filter 65 Micron sintered bronze Burst Pressure 250 psig 1724 kPa minimum Leakage The unit shall be designed so that oxygen is not allowed to leak through any seals or fittings Gauge 0 100 cm H2O 0 9 8 kPa accuracy 2 of the full scale reading 8 of the actual reading Inspiratory and Expiratory Resistance 5 cm H2O 5 kPa maximum Inadvertent PEEP lt 2 cm H2O Inadvertent Continuing Expiratory Pressure lt 2 cm H20 Dead Space 14 8 ml Peak Inspiratory Flow 100 LPM for 2 seconds Pressure for Initiation of Breath 2 cm H2O maximum Oxygen Blending 65 12 oxygen with blender CPAP Range 4 to 20 cm H20 CPAP Airway Pressure Control The airway CPAP pressure is controlled to within 2 cm H20 for all treatment CPAP pressures with inhalation exhalation flows up to 70 lom The airway CPAP pressure is controlled to within 3 cm H20 for all treatment CPAP pressures with inhalation exhalation flows between 70 and 100 lpm Weight L760CPAP 2 35 kg 5 187 Ib L761CPAP 2 57 kg 5 68 Ib L762CPAP 2 81 kg 6 20 Ib L763CPAP 2 67 kg 5 88 Ib Size L760CPAP L761CPAP 73 6 x
12. en Do not use this device while smoking or near open flames Do not use on this device or operate near flammable materials Caution In order to provide optimal performance check all gas supplies to assure only clean dry gas is used free of contaminants and or liquids The gas source may also be a high flow air oxygen blender meeting the flow and pressure requirements The onboard AutoVent 4000CPAP blender is inactive when the unit is in the CPAP mode Changing the oxygen concentration of the onboard blender will have no effect of the oxygen concentration being delivered to the patient during CPAP function e Connecting the patient breathing circuit Caution Due to the dual functionality of the Autovent 4000CPAP use only the recommended breathing circuit The correct ventilator breathing circuit must be used Using the incorrect breathing circuit may result in the unit not functioning properly Located on the right side of the unit is a 22 mm connection for a patient breathing circuit and a connection for the patient airway pressure line Install the corrugated tubing over the 22 mm connector so that it on securely Install the small airway 11 pressure line over the connecting fitting Both tubing will not pull off easily when properly installed e Airway Pressure Relief Control This unit has a used adjustable main airway pressure relief range of 20 to 80 cm H20 During CPAP only the unit also has an active internal 20 cm
13. es will remain constant however no additional tidal volume will be delivered after the pressure limit is reached e Select the desired Gas Mixture Models L761 and L762 only On models equipped with a blender you can select 100 oxygen or a 65 Oxygen gas supply On the 65 oxygen setting the ventilator uses a venturi blending system to mix ambient air with the medical oxygen source This function operates in the Auto Ventilation mode only Warning Do not use the 65 Air Oxygen mixture in areas where the ambient air is not safe for breathing e Connect the patient breathing circuit to the Patient The patient breathing circuit has been design to fit with an oxygen mask 22 mm outside diameter or endotracheal tube 15 mm inside diameter Follow the established guidelines for maintaining the patient s airway e Verify the patient is receiving good ventilation Once the patient is connected to the ventilator the patient should be observed to make sure they have adequate chest rise and fall The chest rise should be even and should return to a normal position If the patient does not have adequate chest rise check the tidal volume setting patient connections and examine the patient for a possible obstruction of the airway or other injury The patient should be monitored to make sure they are receiving proper ventilation The airway pressure gauge should be observed to make sure the patient is receiving adequate positive press
14. low LPM h 1 second h 2second 300 60 18 600 1200 3 Warning Should a mechanical problem develop or the patient appears to be experiencing difficulty breathing while connected to the unit disconnect the unit immediately and ventilate by other means Warning Units that have been stored at temperatures below 32 F 0 C may have a 20 shift in settings when they are operated at these low temperatures The readings will return to normal when the unit warms up Always monitor patients when the unit is used under these conditions o Manual Breaths Manual breaths may be delivered using the manual breath button Each time this button is pushed the ventilator will deliver one breath with the selected inspiratory time and tidal volume This button can be used to deliver breaths during CPR If this button is pushed during automatic ventilation the ventilator will deliver the breath and then continue to deliver automatic breaths based on BPM rate selected For example if you were delivering 10 BPM with a 2 second inspiratory time the manual breath button would trigger a breath to be delivered when pushed This breath would have a 2 second inspiratory time followed by a 4 second expiratory time Automatic ventilation would then continue based on the 10 BPM setting This button should be pushed and released as soon as the desired breath starts If the button is held down longer than the inspiratory time the tidal v
15. make any representations conceming this product nor to assume on LSP s behalf any liability in any way connected with the sale or use of this This Warranty becomes void immediately should any repairs of or alternations to this warranted product be made without authorization by LSP 1720 Sublette Avenue St Louis Missouri 63110 1968 EU Authorized Representative Medizintechnik amp Consulting Effengrube 14 23552 Lubeck Germany Tel 49 451 8090 4200 Fax 49 451 8090 4231 17 15 _ Oxygen Cylinder Depletion Times These times are approximate and assume full cylinder capacity and 5 liters per minute usage for the pneumatic module Always monitor the cylinder pressure and low pressure alarm to make sure you do not run out of oxygen E Cylinder Capacity 682 Breaths per Minute 14 15 18 a 1200 1000 _ 600 500 400 300 200 00 Tidal Volume Jumbo D Cylinder Capacity 637 Breaths per Minute 1200 1000 _ 600 500 400 300 200 00 Tidal Volume 18 D Cylinder Capacity 414 6 Breaths per Minute 14 15 18 Tidal Volume e 16 Symbols Degree of protection against electric shock Type BF Caution Consult accompanying documents D to 85 hbr Condensing ae E a a j Temperature Range 20 F to 140 F ON OFF o On Off O Zo Relative Humidity 0 to 90 Internally powered device IP20 degree of protection against ingress of
16. nit should then be wiped down with water to remove any film left by the cold disinfecting solution Make sure the unit is dry before putting the unit away The following is a list of tested cleaning solutions 1 Isopropyl Alcohol 70 IPA 2 Alconox 1 Tablespoon Alconox to 1 Gallon H2O 3 Cetylcide 2 Tablespoon Cetylcide to 1 Gallon H20 4 Bleach 10 Bleach in H2O A Warning Do not attempt to clean and re use single patient ventilation circuits as loss of performance may occur Dispose of single patient use items per local biohazard standards The unit should be checked for proper operation before use This can be done after cleaning to have the unit ready when needed e 12 Maintenance The Autovent 4000CPAP contains a dust filter located on the left side of the unit This filter cleans the ambient air used in the function of the blender To replace or clean the filter pry the filter cover off Once the cover is removed the filter can be removed Replace the filter into the cover housing and snap the cover back in place AutoVent 4000 Check Out Procedure 1 Set the Autovent 4000 to the following settings BPM 10 Inspiratory Time 2 seconds Tidal Volume 800 ml If you have a CPAP unit you must connect a CPAP vent circuit for testing You do not need a vent circuit to test the units without CPAP 15 2 Connect a 50 psi oxygen source to the unit and it should begin to cycle 3 Using a watch count the number of bre
17. olume will be based on the time the button is held down and will exceed the set value The pressure relief may trigger if this happens Caution Holding the manual breath button down for more than 1 second may trigger multiple breaths or increase the delivered tidal volume This function operates in the Auto Ventilation mode only 10 7b Operating the Autovent CPAP Warning This device should only be operated by qualified personnel under approved medical direction Warning Use only as directed Improper usage or unauthorized modification of this product may result in user or patient injury Warning The CPAP function delivers Continuous Positive Airway Pressure to the spontaneously breathing patient and is used in place of and not in conjunction with forced ventilation e Switch the Ventilation Mode switch to the CPAP mode When the Operation Mode switch is set to the CPAP mode the three breath setting controls BPM Inspiratory Time Tidal Volume as well as the Manual Breath and Oxygen Concentration switch are no longer active Changing these controls will have no effect on the CPAP operation e Connecting to an Oxygen Source Located on the left side of the Autovent and marked with an arrow is a diameter index safety system DISS fitting Connect a 50 psi oxygen source with a minimum of 40 LPM flow capacity to this fitting Warning This device operates with medical gases under pressure including oxyg
18. ption this product if it is defective malfunctions or fails to conform to this Warranty and shall retum it to purchaser with shipping charges prepaid and without any additional charges due to costs of repair or replacement In the event the product retuned by purchaser is not defective has not malfunctioned and does conform to this Warranty LSP shall not be obligated to repair or replace the product and shall not be obligated for shipping charges for return of the product to the purchaser LSP shall in no event be liable for any consequential damages not for loss damages or expenses directly or indirectly arising from the use of this product Disclaimer of Other Warranties THIS WARRANTY IS IN PLACE AND IN LIEU OF ALL OTHER WARRANTIES OR REPRESENTATIONS EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A SPECIFIC PURPOSE BY OPERAITON OF LAW OR OTHERWISE This Warranty does not apply to malfunction or damage resulting from accident alteration misuse abuse of the product improper preventative maintenance storage al extreme temperatures or extreme environments beyond design limits or where appropriate improper use of the product by untrained persons This Warranty docs not apply to any plastic or rubber components since they can be affected adversely by undue exposures to heat sun water ozone or to other deteriorate elements LSP has not authorized any other firm or person to
19. reath delivery as a first indication and then sound continuously as the source gas pressure drops A Warning Preset tidal volumes may not be delivered when the low source gas pressure is reached e 9 Electronic Alarms Models L762CPAP and L763CPAP only The optional electronic alarms module will give an audible and visual flashing light for the following alarms e Low Source Gas e High Airway Pressure e Low Airway Pressure Low source gas alarm is an audible intermittent tone and a visual alarm that activates when the source gas pressure drops below 40 to 38 psi This is an indication that the unit will stop functioning soon and may not be delivering proper tidal volumes The alarm will clear when proper source gas pressure is restored for a minimum of 10 seconds See low source gas alarm in section 6 for more information High airway pressure alarm is an adjustable alarm that will activate if the pressure exceeds the selected pressure This alarm operates independently from the pressure relief alarm This alarm can be set at a pressure of 15 to 80 cm H2O This alarm may be used to monitor a change in the patient s condition such as fluid collecting in the lungs or a partial obstruction of the airway This alarm is automatically cleared when 25 seconds pass without a high airway pressure being detected This alarm has a flashing red LED and a continuous audible tone The low airway pressure alarm is an adjustable alarm that will ac
20. reathing patient and is used in place of and not in conjunction with forced ventilation The Autovent 4000CPAP is intended to be used as a gas powered emergency ventilator which in ventilation mode is designed to provide emergency respiratory support by means of a face mask or tube inserted into the patient s airway 2 Explanation of Warnings AN Warning Potential injury to the patient or operator exists Caution Potential damage to the ventilator breathing circuit or other equipment may result Warnings and cautions should be read and understood before operating the Autovent 3 Explanation of Abbreviations Tidal Volume ine db Inspiratory Time M Milliiters S l MI Light emitting diode Cardio Pulmonary Resuscitation High pressure alarm 4 Specifications Specifications Gas Supply Pressure 280 kPa 40 6 psi to 600 kPa 87 0 psi Oxygen DISS Breaths per Minute BPM Accuracy 10 BPM Range 1 sec Inspiratory Time 8 to 30 BPM Range 2 sec Inspiratory Time 8 to 20 Tidal Volume Tv Accuracy 10 with 100 Oxygen Tidal Volume Range 1 Second Inspiratory Time 200 ml to 600 ml Tidal Volume Range 2 Second Inspiratory Time 400 ml to 1200 ml Inspiratory Time h Accuracy 10 1 second or 2 second selection Safety Pressure Relief Adjustable from 20 to 80 cm H2O 10 The 60 cm H2O mark is a maximum regardless of setting Low Source Gas Alarm Activates at 275 to 262 kPa 40 to 38 psi sour
21. tivate if the airway pressure does not exceed a minimum value A dial is used to set the LPA set point 13 from 0 to 30 cm H2O The airway pressure must exceed the low pressure set point at least once every 15 seconds or the LPA LED will turn on and the buzzer will sound an intermittent tone or beep The alarm will clear when the airway pressure goes above the set point This is used to indicate a potentially insufficient tidal volume or a patient disconnect Alarm Module Battery Indicator LED During normal operations the LED is green when the unit is on When the battery reaches a low voltage point about 2 or 3 hours before the alarm package will stop working the Battery Indicator will turn yellow When the battery reaches an even lower voltage point about 1hour before the alarm package will stop working the Battery Indicator will turn red The alarm package does not have to be turned on for the ventilator to operate properly The alarm module adds additional monitoring capability Silence Button When there is an alarm the user may press the silence button This will turn off the buzzer for 110 seconds as long as there are no other alarms Pressing this button will not clear the alarm LED s e 10 Electronic Alarms Battery Replacement Keyed Battery Connection The Electronic Alarms battery is replaced by removing the 2 screws on the battery door located on the back of the alarm module This will require a Phillips head
22. uld see the low gas indicator turn red momentarily 12 Visually inspect the anti suffocation valve in the ventilator outlet fitting to verify that it is laying flat against the inside of the fitting The Autovent 4000CPAP should be checked for calibration annually lf proclems are noted with this product contact the Allied Healthcare Products Inc technical support center for assistance at 800 411 5136 16 e 13 Accessories Part Number Qty per Package 800148 CPAP Ventilator Circuit PB 800149 Filter CPAP L270 220 Oxygen Regulator L535026 Oxygen Hose 6ft W DISS fittings e 14 Warranty Limited One 1 Year Warranty LSP warrants this product to be free from defects in material and workmanship for a period of one 1 year from the date of manufacture This Warranty is expressly conditioned on compliance with all inspection and preventative maintenance requirements as set by applicable government agencies and as specified by LSP This Warranty is extended by LSP only to the first purchaser of this product from either LSP or from an authorized LSP distributor LSP S OBLIGATIONS AND PURCHASER S REMEDIES UNDER THIS WARRANTY ARE LIMITED AS FOLLOWS In the event of a defect malfunction or failure to conform to this Warranty purchaser shall return this product to LSP with shipping charges prepaid within a reasonable time after discovery of such defect malfunction or failure to conform LSP shall repair or replace at LSP s o
23. ure ventilation If the gauge reading is low during the delivery of a breath and the chest rise is also low check the tidal volume setting patient connections and examine the patient for a possible obstruction of the airway or other injury The gauge reading should also be observed to make sure it is not too high Common numbers used in practice are a maximum of 20 cm H20 for and unprotected airway and 30 cm H2O for a protected airway Higher pressures may be required based on the patient s condition and you should always follow the physician s instructions A high reading with pressure limit alarm may indicate a blocked airway or a stiff lung e Spontaneous Breathing by the Patient Should the patient begin to breathe spontaneously the Autovent 4000CPAP will sense this breath and deliver the set tidal volume at the set inspiratory rate The breath timing will be reset based on the selected BPM rate For example if 10 BPM was selected the next breath will be delivered 6 seconds after the start of the spontaneous breath This function operates in the Auto Ventilation mode only The gas flow rate to the patient during a spontaneous breath is based on the tidal volume selection as shown in the following table Should the patient demand exceed the gas flow rate the addition demand will be supplied by ambient air Ambient air is pulled in through an anti suffocation valve located in the breathing circuit connection fitting Tidal Volume Setting F
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