10.9.4 SIMV (Volume Control) + Pressure Support
90%
3
1 2
The following parameters are set:
1. Tidal Volume (ml) or the Minute Volume
(l/min)
2. SIMV rate (b/min)
3. PEEP (cmH
2
O)
4. I:E ratio / Insp. time
5. Breath cycle time
6. Inspiratory rise time (%/s)
7. Pause time
8. Inspiratory Cycle-off (%)
9. Trigg. Flow / Trigg. Pressure
10. PS (Pressure Support level) above PEEP
(cmH
2
O)
11. Gas mix (O
2
/Air or O
2
/N
2
O)
12. O
2
concentration (%)
13. Fresh gas flow (l/min)
14. Agent concentration (%)
SIMV (VC) properties
This combined control and pressure
support/spontaneous function allows for
preset mandatory breaths synchronized with
the patient's breathing.
1. The mandatory breath is defined by the
basic settings (mode of ventilation, breath
cycle time, respiratory pattern and
volumes/pressures).
2. The spontaneous/pressure supported
breaths are defined by the setting for
Pressure Support.
3. If there is no trigger attempt within a time
window equal to 90% of the set Breath
cycle time, a mandatory breath is
delivered. (The Breath cycle time is the
total time for one mandatory breath.)
230
FLOW-i 4.2, User's Manual
| 10
| Ventilation modes |