5.1.4 Manual ventilation
The fresh gas flow is constant during both
inspiration and expiration when manual
breathing mode is selected.
Inspiration
Expired gas is, together with new fresh gas
from the gas modules, re-administered to the
patient by compression of the manual
breathing bag. This resulting pressure build-up
also serves to evacuate gas through the APL
valve when the set APL pressure is reached.
4
5
7
8
6
9
11
10
1
2
3
Direction of gas flow is indicated by the
arrows.
1. Air gas module
2. O
2
gas module
3. N
2
O gas module
4. Vaporizer
5. One-way valve
6. CO
2
absorber
7. Flow transducer
8. Volume reflector
9. Manual breathing bag
10. APL valve
11. Gas evacuation
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FLOW-i 4.2, User's Manual
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| System functionality |