The Breathing System Theory of Operation
1 - 40 046-001141-00 A5/A3™ Service Manual
1.5.8.2 Manual Breathing Bag
In manual mode, this device acts as a normal breathing bag, enabling the user to ventilate the
patient manually.
1.5.8.3 CO2 Absorber Canister
The sodalime inside the CO2 absorber canister absorbs the carbon dioxide from the exhaled gas. The
CO2 absorber canister accommodates standard sized Pre-paks or loose-fill CO2 absorbent.
1.5.8.4 Inspiratory and Expiratory Valves
To ensure correct gas flow direction to and from the patient, check-valves are integrated in the
inspiratory and expiratory limb of the Breathing System.
1.5.8.5 APL (Airway Pressure Limiting) Valve
In manual mode, the APL Valve acts as a normal spring-loaded pressure relief valve, limiting the
maximum pressure in the Breathing System.
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