7100 Anesthesia Ventilator
2-24
02/03 1006-0836-000
2.5.9 Breathing
Circuit Flow
Sensors
Two flow sensors are used to monitor inspiratory and expiratory gas flow. The
inspiratory flow sensor is downstream of the breathing system inspiratory check valve.
Feedback from the inspiratory transducer is used to supply tidal volumes that make
allowances for the effects of fresh gas flow and circuit compressibility. The expiratory
flow sensor is located at the input to the breathing system expiratory check valve.
Feedback from the expiratory flow sensor is used to supply signals for the expiratory
tidal volume monitoring.
INSPIRATORY
O2 % MONITOR
EXP
FLOW
XDUCER
INSPIRATORY
02%
BULKHEAD
CONNECTOR
PATIENT
LUNG
EXPIRATORY
FLOW
SENSOR
INSPIRATORY
FLOW
SENSOR
DRAIN
CABLE TO
VENTILATOR
CONTROL
MODULE
AIRWAY
PRESSURE
SENSE
FLOW
SENSOR
MODULE
EXPIRATORY
CHECK VALVE
INSPIRATORY
CHECK VALVE
(MIA/VMB)
INSP
FLOW
XDUCER
AB.43.146
To/From Bag/Ventilator
To Absorber
From Fresh Gas Flow
From Absorber
To Airway Pressure Gauge/Transducer
Note regarding ABS:
In the Aespire breathing
system, moisture formed in
the circuit module is drained
directly into the absorber
canister.
Summary of Contents for 7100
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