A5/A3™ Service Manual 046-001141-00 1 - 31
Theory of Operation Gas Flow
FIGURE 1-22 Absorber Canister
In case of mechanical ventilation, during inspiration, gas flows through the Auto/Manual ventilation
switch (41), BYPASS valve (33) or CO2 absorber canister (32), inspiratory valve (31), O2 sensor (34),
airway pressure gauge (35), and inspiratory flow sensor (36) to the patient.
During expiration, gas flows through the expiratory flow sensor (38), expiratory valve (40), and Auto/
Manual ventilation switch (41) to the folding bag. Airway pressure is monitored by the pressure
sensor (53).
Excess water condensation from the exhaled gas is collected in the water collection cup, located on
the bottom side of the breathing system.
The breathing system is easily disassembled and is autoclavable at 134
o
C.(273
o
F).
1.3.4.13 Anesthetic Gas Scavenging System
The Anesthetic Gas Scavenging System (AGSS) is composed of the AGSS transfer system, the AGSS
receiving system, and the AGSS disposal system. Waste gas goes from the exhaust port of the
anesthesia machine through the AGSS transfer system and the AGSS receiving system to the
hospital's waste gas disposal system (AGSS disposal system), as shown below.
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