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9.11.4.1. System set-up
To set up the medical backboard device for gas analysis, follow these steps:
1. Securely mount the ISA analyzer.
2. Connect the ISA analyzer interface cable to the medical backboard.
3. Connect a Nomoline Family sampling line to the ISA analyzer input connector.
4. Connect the gas sample exhaust port to a scavenging sys
5. Connect the gas sample exhaust port to a scavenging system or return the gas to the
patient circuit to prevent pollution of the operation room when N
2
O and/or anaesthetic
agents are being used. Due to the risk of patient cross-infection, always use a bacteria
filter on the exhaust port side if sampled gas is intended to be re-breathed.
6. Power up the medical backboard.
7. A green LED indicates that the ISA analyzer is ready for use.
8. Perform a pre-use check as described in section 9.10.4.2.
Note: Returning the ISA’s exhaust gas to the patient circuit is not allowed in the USA.
9.11.4.2. Pre-use check
1. Before connecting the Nomoline Family sampling line to the breathing circuit, do the
following:
2. Connect the sampling line to the ISA gas inlet connector.
3. Check that the gas inlet connector is lit with a steady green light.
4. Breathe briefly into the sampling line and check that the medical backboard device
displays a valid CO
2
waveform and valid values.
5. Occlude the sampling line with a fingertip and wait for 10 seconds.
6. Check that an occlusion alarm is displayed and that the gas inlet connector shows a
flashing red light.
7. Perform a tightness check of the patient circuit with the sampling line attached.
9.11.4.3. Manitenance
For the ISA analyzer maintenance, please call the service engineer authorized by our company.
9.11.4.4. Zeroing
The gas analyzer needs from time to time to establish a zero reference level for the gas
measurements and the flow.
ISA performs zeroing by switching the gas sampling from the respiratory circuit to ambient Air. The
automatic zeroing is performed 1 to 3 times per day, and takes less than 3 seconds for ISA CO
2
gas analyzers and less than 10 seconds for ISA Multigas analyzers.
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