Prima 320 Advance
52
User Manual
Setting the parameters in VCV mode
Parameter
Range
Step
VT
10-1500 mL
10 - 100 mL: 5 mL
100 - 1500 mL: 10 mL
I:E
4:1 - 10:1
0.5
FREQ
4 -100 bpm
1 bpm
PEEP
Off, 3 - 30 cmH2O
1 cmH2O
Pause
0% - 60%
5%
Sigh
Off, 50 - 150
25
6.4.4 PCV mode
Principles of pressure control ventilation
In PCV mode, Paw rises rapidly to the preset pressure control
value. Then gas flow slows down through the feedback system
to keep Paw constant until expiration starts at the end of
inspiration.
The tidal volume delivered in PCV mode changes, based on
patient pulmonary compliance and airway resistance. Actual
tidal volume is measured.
In PCV mode, select PEEP to improve expiration of end-tidal
carbon dioxide and to increase oxygenation.
PCV mode waveforms
PCV mode waveforms for Paw and flow are shown.
Generally, in PCV mode, the Paw waveform rises sharply
during inspiration and stays at the plateau for a relatively long
time without peak. The flow waveform declines in the same
period.
Tidal volume is measured, instead of preset by the user.
Key
A: Airway pressure
B: Pmax
C: SIMV breath
D: PEEP
E: Flow
Setting the parameters in PCV mode
Parameter
Range
Step
Pinsp
5-70 cmH2O
1 cmH2O
I:E
4:1 - 10:1
0.5
FREQ
4 -100 bpm
1 bpm
PEEP
Off, 3 - 30 cmH2O
1 cmH2O
Tslope
0 - 1 s
0.1 s
Operating the Anaesthesia System
A
B
C
C
D
E
