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6.8.2 Breathing System Leak Test in Mechanical Ventilation
Status
NOTE
z Breathing system leak test must be performed when the system is in standby status.
z Before doing the breathing system leak test, make sure that the breathing system is
correctly connected and the breathing tubes not damaged.
1. Make sure that the system is Standby. If not, press the key and select [Ok] from the
pop-up menu to enter standby status.
2. Connect the Y piece on the breathing tube to the leak test plug on the breathing system.
Occlude the gas outlet of the Y piece.
3. Turn the O
2
flow control to set O
2
flow to 0.15-0.2 L/min.
4. Push the O
2
flush button to fill the bellows, folding bag rising to the top.
5. Select the [Maintenance] shortcut key and then select [Breathing System Leak Test
>>].
6. Select [Start] to start the breathing system leak test. The screen prompts [Performing
leak test].
7. After a successful test, the screen shows [Leak Test Passed!]. Otherwise, the message
[Leak Test Failure! Please try again.] is displayed. In this case, you need to check that
the breathing system is correctly connected and the tubes are not damaged before doing
the leak test again.
8. Select
to exit the current menu.
NOTE
z During the leak test, if you select [Stop], test is stopped. Then the message [Leak
Test Stopped! Leak test is unfinished.] is displayed. This indicates invalid test
instead of test failure.
z In case of leak test failure, check all possible leak sources, including bellows,
breathing tubes, and sodalime canister. Check that they are correctly connected
and their connectors are undamaged. When checking the sodalime canister, check
if there is sodalime attaching the sealing component of the canister. If there is, clear
the sodalime
z Do not use the anesthesia machine if breathing system leak occurs. Contact your
service personnel or us.
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