ELM AM852 User manual

AM852 Veterinary Anaesthesia machine User’ Manual
2
Contents
1.Introduction......................................................................................................4
1.1About AM852......................................................................................................... 4
1.2Symbols used in the manual and device.................................................................. 4
2.Control section of anaesthetic system.............................................................7
2.1Anaesthetic control system...................................................................................... 7
2.2Assembly of respiration system...............................................................................9
2.3Exhaust emission................................................................................................... 10
2.4Control Evaporator.................................................................................................11
2.5Instructions for filling the AVDD.......................................................................... 12
3. Assembly of whole set..................................................................................15
3.1Respiratory system installation..............................................................................15
4. Pre-use Test..................................................................................................16
4.1Test interval............................................................................................................16
4.2Check the system................................................................................................... 17
4.3Test gas supply pipe............................................................................................... 17
4.4Test flowrate control.............................................................................................. 18
4.5Evaporator Installation...........................................................................................19
4.6Test Respiration system......................................................................................... 20
5. Installation and Replacing............................................................................22
5.1Install absorber.......................................................................................................22
5.2 Replace absorbent................................................................................................. 22
6. Cleaning and Sterilization............................................................................ 23
6.1Cleaning and sterilization of Anaesthesia workstation surface............................. 23
6.2Cleaning and sterilization of reusable rubber corrugated tube and manual
breathing bag...............................................................................................................23
6.3Cleaning and sterilization of inspiration and expiratory unidirectional valve.......24
6.4Cleaning and sterilization of absorber................................................................... 24
7. User’s maintenance.......................................................................................25
7.1Maintenance schedule............................................................................................25
7.2Maintenance of anaesthetic evaporator..................................................................25
7.3Maintenance of flowmeter..................................................................................... 26
7.4Maintenance of inspiration and expiratory unidirectional valve........................... 26
8.Trouble shooting............................................................................................27
9. Operation Principle.......................................................................................28
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AM852 Veterinary Anaesthesia machine User’ Manual
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9.1Diagram of system drive air circuit....................................................................... 28
10. Technical Specification.............................................................................. 30
11. Detailed list of host machine, accessories, and consumer goods.............. 34
12. Guarantee....................................................................................................35
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1.Introduction
1.1About AM852
AM852 is an anaesthetic transportation system, and it may carry out the
following functions:
Provide manual ventilation for the animal in an operation.
Supply the animal with oxygen in an operation.
Supply the animal with anaesthetic gases of accurate and steady
concentration in an operation.
Absorb carbon dioxide exhaled by the animal in an operation.
1.2Symbols used in the manual and device
Warning and Note show the possible risks if you disobey the declarations in this
manual. Please read and abide by all the warnings and cautions seriously.
Warning: Indicate the possible injury to operators or animal.
Note: Indicate the possible damage to the device.
Importance: similar to a commentary, but with emphasis meaning.
There are other symbols also used in the device or AM852 user’s manual to replace
text statement, including:
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AM852 Veterinary Anaesthesia machine User’ Manual
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、
Note read the document
2008-08
ABC123
Figure 1-1 symbol
Importance：Punchy recommendation: It is necessary to use the O2check and test assembly in
this device, and please refer to the local standards for the relevant rules of
detection.
Importance：Punchy recommendation: When using the system, User should equip anaesthetic
gas spiritualization system (AGSS) according with EN740 standard.
Importance：According to EN12342 or ISO7767 it is necessary to use the O2check and test
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and the CO2check and test (according to EN864 or ISO9918) in this device.
User should equip CO2check and test according with EN740 standard.
Importance ：According to the stipulation of European standards EN740 and international
standards IEC 60601-2-13/ISO8835-1, it is essential to check and test the
anesthetic (according to ISO11196) when using Anaesthesia evaporator. User
should equip Anaesthesia evaporator monitor according with EN740 standard.
Warning: Please read this manual in detail and master the content before operating the
product.
Warning：Ensure the avirulence of air feed tube, bag and breathing loop assembly, and the
followings must not emerge:
·Cause allergic reactions in the animal’s body.
·React with Anaesthesia gas or anesthetic to produce dangerous byproducts.
Warning：The danger of explosion. Ensure not to use flammable anesthetic in AM852 system.
Warning：Do not use anlistatig breathing tube or face mask. It is possible to cause burning
when using this species of breathing tube or face mask near surgery equipments of
high frequency.
Warning：In order to protect the animal, the following must be ensured.
·Ensure the operations of all life supports and monitor assembly are proper.
·Ensure manual ventilation equipment convenient .
Warning ：If the anaesthetic system is to be equipped with an anaesthetic ventilator, the
anaesthetic ventilator shall comply with the requirements of ISO 8835-5.
Warning: a malfunction of central gas supply system may cause more than one or even all
devices connected to it to stop their operation simultaneously.
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2.Control section of anaesthetic system
2.1Anaesthetic control system
1. O2Flush press button 2. Flowrate regulating 3. Evaporator
4. Respiration system 5. NO2pressure gauge 6. O2pressure gauge
Figure2-1 AM852 Control functions on front
3
2
1
6
5
4
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
Items Remark
1 O2flush button Press O2flush button to provide high flowrate O2to respiration
system
2 Flowrate regulating Revolving control button anti-clockwise will augment flowrate
and revolving control button clockwise will decrease flowrate.
1. Pipeline gas linker(O2) 2. Pipeline gas linker(NO2)
Figure 2-2 AM852 Functions on back
1
2
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2.2Assembly of respiration system
1. Hook 2. Pressure gauge 3. APL valve 4. Absorbers 5. Common gas inlet
6.Inspiration unidirectional valve 7.Inspiration outlet 8.Manual switch
9.Expiration unidirectional valve 10. Water outlet 11. Manual gasbag interface
12. Exhaust outlet
Figure2-3 Assembly of respiration system
Items Remark
absorber load and unload Unscrewing screw, releasing absorber and then can
unload it; fitting on absorber and screw screw can load
it.
APL valve Adjustable pressure limit valve (APL valve): In manual
control, the adjusting range is 0.2kPa-6.0kPa, color
mark displays the press range, the green denotes low
pressure range, the red denotes high pressure range
and the yellow denote the middle value.
Manual switch Horizontal wrench is manual ventilation (gas goes to
gasbag);
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2.3Exhaust emission
When using the system, exhaust emission should be carried out. User should equip AGSS
according with EN740 standard. Connect exhaust outlet of respiration system with AGSS
by exhaust emission tubes according with EN740 standard. See Fig. 2-4
1.Respiration system 2. Connecting tube 3. AGSS system
Fig 2-4 Connecting AGSS system
Warning: Never connect exhaust gas port with sub-atmospheric system directly. Orelse
leakage of breathing system generates.
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2.4Control Evaporator
Please refer to the evaporator operation manual to find the more details .
1 .drug-adding knob 2.lock knob 3. concentration panel
4. viewing window 5.drug-releasing port
Figure 2-5 Control Evaporator
Items Remarks
1Drug-adding knob Anticlockwise rotate screw cap to unload it, and the drug
can be put in, clockwise rotate screw cap to airproof.
2Lock knob Press this button, and rotate concentration control switch
to set anaesthetic concentration.
5Drug-releasing port You could see the Drug-releasing knob inside the evaporator
when you rotate the drug-adding knob to unload it. Unload
the drug-releasing knob, and release the drug.
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Operation
Storage
Temperature
+10℃～+40℃
-5℃～+50℃
Relative
humidity
30%～75% no
condensation
10%～90% no
condensation
Pressure
70 kPa～106kPa
50 kPa～106kPa
Anaesthetic
concentration
0.5%～5.0%
The carrier
gas(O2N2O)
flow
0.2L/min～
10L/min
2.5Instructions for filling the AVDD
1. Check that the vaporizer concentration control is in the ‘0’ position.
2. Unscrew the filler cap.
3. Remove the bottle cap and fill the vaporizer slowly and carefully, stopping to check
the liquid level occasionally, Stop filling when the upper mark is reached on the
filler block.
4. Check that the seal in the filler cap is clean, and positioned correctly. Replace the
filler cap. Tighten finger tight only. DO NOT use a wrench.
Capacity
Volume at MAX mark 150ml(nominal)
Volume at MIN mark 35ml(nominal)
Determination of vapour concentration delivered by AVDD
1. Test the AVDD on a calibrated test rig capable of supplying the necessary gas flowrate
and pressures required by the test conditions, or on an anaesthetic system with the
anaesthetic ventilator and anaesthetic breathing system supplied or recommended by
the manufacturer or supplier.
Connect an anaesthetic vapour analyser to the fresh gas outlet of the anaesthetic
system, or to the inlet of the anaesthetic breathing system if there is no fresh gas outlet
or, if applicable, to the inspiratory port of the anaesthetic ventilator.
Check to ensure that the components downstream of the AVDD will not affect the test
results, for example by absorbing volatile agents, by imposing time delays on
response, or by leakage.
2. Condition the calibrated test rig or the anaesthetic system, as applicable, with the
specified test equipment and anaesthetic agent in the test room for at least 3 h
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AM852 Veterinary Anaesthesia machine User’ Manual
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at (20 ± 3) ° C, and maintain this temperature throughout the test procedure.
3. Fill the AVDD with the appropriate anaesthetic agent to approximately half of the
maximum usable volume, and leave it to stand for at least 45 min.
If the manufacturer recommends that when power is applied to the AVDD, a warm-up
period be allowed before use, power shall be applied for at least that period before
testing. This period may be within the 45 min.
4. With the AVDD control in the “Off”, “0” or, if applicable, “Standby” position, set the
gas flowrate through the anaesthetic system to (2 ± 0,2) l/min and adjust the
anaesthetic ventilator to give (15 ± 2) breaths/min at an I:E ratio of 1:2 ± 20 % with
the inspiratory flow control set to maximum.
For an anaesthetic system in which the fresh gas flow is determined by the anaesthetic
ventilator settings, set these to give a minute volume of (2 ± 0,2) l.
Introduce a maximum pressure fluctuation of (2 ± 0,3) kPa (above ambient) at the
fresh gas outlet, ensuring that the decay time during the expiration period (from
100 % of the fresh gas outlet pressure at the end of the inspiration period to 33 % of
this pressure) is less than 0,6 s.
Note: This can be achieved by using a test lung having a compliance of 0,2 l/kPa and an
appropriate resistance.
Maintain the pressure fluctuations for 3 min, and after that time measure the
concentration of anaesthetic vapour delivered over a further 1 min period while
maintaining the pressure fluctuation. Calculate the average vapour concentration in
the total delivered gas flow.
5. Repeat the procedure described in 4. with the AVDD set to each of the other settings,
and in the order given in Table 2-1. If the AVDD is not marked with the concentration
settings given in Table 101, use the nearest settings on the AVDD. If any setting
given in Table 101 is equidistant between settings on the AVDD, use the lower setting
on the AVDD.
Table 2-1 — Settings to be used for testing delivered concentration
Order of test
1
2a
3
4
5
6
7
Off, Standby, and zero, if separately marked
lowest graduation above zero
10 % FS
20 % FS
50 % FS
75 % FS
maximum graduation (full scale)
a If 10 % of full scale (FS) is the lowest graduation, step 2 is omitted.
6. Repeat the procedure in 4. and 5., using a fresh gas flowrate of (8 ± 0,8) l/min and a
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pressure fluctuation at the fresh gas outlet of (5 ± 0,4) kPa.
For an anaesthetic system in which the fresh gas flowrate is determined by the
ventilator settings, set these to give a minute volume of (8 ± 0,8) l.
Vapour output during and after oxygen flush
*When the AVDD is tested as described in Determination of delivered vapour output
during and after oxygen flush , the output of anaesthetic vapour shall not increase by
more than 20 %.
Determination of delivered vapour output during and after oxygen flush
1. Follow the test procedure in.6. Instead of introducing a pressure fluctuation at the fresh
gas outlet, measure the output of anaesthetic vapour (concentration of vapour × volume
of gas) for 1 min before, during a 10s activation of the oxygen flush, and for 30s after
the oxygen flush activation.
Compare these three measurements, expressed as volume flowrate (volume of vapour
per unit of time).
Note: The volume of gas can be determined for example, by integrating flow or by collecting
the gas during the specified period.
2. Repeat the test procedure in 1. using a steady sub-atmospheric pressure of 10 kPa.
Compare these three measurements, expressed as volume flowrate (volume of vapour
per unit of time).
Warning: The evaporator isn’t adjusted in the range from 0 to the first scale, so this
range can not be used.
Warning: An ANAESTHETIC VAPOUR DELIVERY DEVICE used with the ANAESTHETIC SYSTEM
shall comply with ISO 8835-4.
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3. Assembly of whole set
3.1Respiratory system installation
1. Common gas pipe 2. Holder 3.Respiration system
Fig. 3-1
Pipeline installation：
Fig. 3-2
1
2
3
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4. Pre-use Test
4.1Test interval
Under the following condition，pre-use test should carry out:
1. Before the first pet use every day.
2. Before each pet use.
3. Test machine according to the request after service and maintenance.
Test item
Before the first
pet use every day
Before each pet use
Check system
applicable
-
Test pipe and gas cylinder
applicable
-
Test flowrate control
applicable
-
Install evaporator
applicable
-
Test respiration system
applicable
applicable
Warning: Do not put the machine into operation before you read and comprehend
the operation and maintenance of each parts.
·All system connection.
·All warnings and notes.
·Operation method of each parts.
·Test method of each parts.
Before you use the system, should
·Complete all tests mentioned in this section.
·Test all other system parts.
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4.2Check the system
Warning:
Ensure:
1. The equipment is in good condition.
2. All parts are connected correctly.
3. Respiration circuit and pipes are connected correctly and in good conditions,
and there are enough absorbent in absorber.
4. Lock evaporator to correct position and fill enough anaesthetic.
5. The connection and pressure of gas supply system are correct.
6. If there are spare gas cylinders, the valve of gas cylinder which is connected
to the system should be closed.
Warning: When use pipe to provide air, the spare gas cylinder should not be open so
as to avoid that supply gas exhaust result in storing supply shortage when
pipeline is in trouble.
7. The contingency equipment have already been prepared and in good
condition.
8. The equipment used to maintain airway, tracheal intubatton and manage
device have already been prepared and in good condition.
9. Applicable anaesthetic and contingency drug have already been prepared.
10. Anaesthesia gas spiritualization system has been connected correctly and in
good condition.
11. Ensure truckles are not loose and brake has been locked, can not move.
4.3Test gas supply pipe
Warning: In order to prevent the equipment being damaged:
·Open gas cylinder valve slowly
·Do not take flowrate control forcefully.
1.Cut off all air feed linkages and close all gas cylinder valves.
If the values of pipe and gas cylinder pressure gauge are not zero,
then:
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·Feed into O2
·Set flowrate control on middle range.
·Ensure all of the pressure gauges be reset to zero, except O2.
·Cut off O2 feed.
·Ensure O2 pressure decline to zero gradually. With the pressure
debase, the low pressure alarm should ring.
2. Connect pipeline supply air.
3. Check whether the pipe pressure is coincident with the request of the region
where the user locates in.
4.4Test flowrate control
Warning:
·If N2O is connected, it will flow through the system during the period of test.
Use safe and eligible method to collect and dispose it.
·Unsuitable mixture gas will harm the animal. If the linkage system can not
supply the suitable proportioned O2 and N2O, the system should not be used.
1. Connect the supply gas pipes to the system. Clockwise rotate all flowrate
regulating switches; ensure to rotate them to the bottom.
2. Open the system power supply breaking road switch.
3. Counterclockwise rotate N2O flowrate regulating switch slowly, ensure
that the flowrate of O2 is increasing and set the flowrate of N2O
according to the following table. The flowrate of O2 must be more than
the minimum limitation.
N2O flowrate（L/min）
the minimum limitation of O2
flowrate（L/min）
1.5
0.5
3
1
6
2
9
3
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4. Adjust the flowrate of N2O to 9L/min, the flowrate of O2 to 3L/min or
higher, clockwise rotate the O2 flowrate regulating switch slowly, ensure
that the flowrate of N2O decreased and set the flowrate of N2O according
to the following table. The flowrate of O2 must be more than the
minimum limitation.
N2O flowrate（L/min）
the minimum limitation of O2
flowrate（L/min）
6
2
3
1
1.5
0.5
5. Adjust the whole range flowrate of all gases; ensure the buoy of the
flowrate tube can move smoothly.
6. Disconnection O2 pipes feed or close the gas cylinder valve.
7 Ensure：
·alarming when O2supply pressure is low .
·the flow of N2O stop, the flow of O2 stop at last.
8. Clockwise rotate all flowrate regulating switches, ensure to rotate them to
the bottom.
9. Connect the pipes to the system again.
4.5Evaporator Installation
Warning: The evaporators which can open more than one at the same time can not
be used in this system.
If the evaporator is not the product appointed by manufacturer, the
performance of this system may be debased.
1. If the evaporator does not assemble the support circuit tightly, it should be
removed and reinstalled. If the evaporator cannot fit the support circuit
tightly, the system should be given up.
2. Before uninstall the evaporator from the support circuit, lift it up following
the perpendicular direction as best as you can to make it break away from
support circuit, but do not pull it forward. Do not make the evaporator rotate
on the support circuit.
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3. If more than one the evaporators can be opened at the same time, these
evaporators should be removed and reinstalled according to the operation
manual of evaporators.
4.6Test Respiration system
1. Verify that the anaesthetic gas spiritualization system(AGSS) have been
connected correctly and work normally.
2. Expiration unilateral valve 1 ascends during the inspiration period and
descends during the expiration period.
Inspiration unilateral valve 2 ascends during the inspiration period and
descends during the expiration period.
Figure 4-1 Respiration System
3. Gas leak test of gas bag circuit:
·Wrench manual/ mechanical ventilator control to manual ventilation.
·Set the flowrate of O2 to about 0.3L/min and close others flowrate
regulating switches.
·Close APL valve.
·Install manual gas bag on the port of it.
·Connect the Y-junction with the simulated lung at the animal interface.
·Press the O2flush button until the pressure gauge reaches to about 3kPa.
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·The value of pressure gauge should not drop more than 0.3kPa within 20s,
if it is over this limit, that indicates gas leakage, the troubleshooting process
should be made.
4. Test the APL valve
·Close the APL valve completely.
·Set the flowrate of O2 to 3L/min.Close other gases and ensure that the value
of airway pressure do not over 7.5kPa. Certain pressure fluctuation is
normal circumstance.
·Open the APL valve completely.
·Ensure the value of airway pressure do not over 0.5kPa.
·Press the O2flush button and ensure that the value of airway pressure is
nearly 0.
Warning: If there were foreign bodies in respiration system, these will jam the gas
follow to the animal, this may cause injury or death to the animal Ensure
that there is no test plug or other foreign bodies in system.
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