Mindray PM-9000, Operation Manual

Page: 309 / 378

Anesthesia Gas Monitoring
18-5
WARNING
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Ensure the compactness of the connection when performing gas
measurements. Any leakage in the system will lead to incorrect readings
because this leakage will make the surrounding environmental air mix
up with the patient gas.
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The water trap is used for collecting water condensates to protect the
module from the ingress of water; when the collected water in the water
trap reaches a specific volume, it must be removed, thus to avoid
clogging in the gas system.
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The water trap has filter materials inside, which protect the module from
being contaminated by bacterium, liquid, or patient secretion. When the
water trap works for a long time, dusts or other foreign bodies may block
the filter materials, or even result in system clogging. In this case,
replace the water trap. The recommended replacement period is 2
months.
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Only gas sampling hoses recommended for the patient monitor are
permitted. Otherwise, the performance and reliability of the AG module
may be decreased.
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In case a gas sampling hose is knotted, disuse it. Because the knot may
cause clogging or leakage.
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When an inspiratory anesthetic is used, use an exhaust hose to connect
the outlet of the AG module to the exhaust disposal system of the
hospital or to the anesthetic/respiration machine.