CPAP
The gas flow to demand valve 6 is released by the
3/2-way valve 4 and monitored by pressure sensor 5.
Inspiration / Expiration
Controlled by the patient's inspiratory effort, demand
valve 6 supplies the appropriate volume to the patient.
This supply is stopped when the patient wishes to start
expiration.
The demand valve generates the desired CPAP pressure
in the breathing system using PEEP/CPAP set on the
PEEP valve 8.
50
Description of operating principles
CPAP
P
E
P
E
E
P
P
E
∆P
E
PEEP
Paw
Paw
Flow
15
14
13
24
2322
6
25 26
5
IPPV/
SIMV/CPAP
4
21
87
10
O2
AIR
12
3
9
11
12
17
18
19
20
16
Insp./Exsp.
Air Mix/
No Air Mix
100%O
2
50%O2
27
04329033_2
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