Getinge Maquet FLOW-i 4.2 User Manual page 216

| 10 | Ventilation modes
10.6 Volume Control (VC)
Volume Controlled ventilation ensures that the
patient receives a certain pre-set Minute/Tidal
Volume.
In this control mode, the system delivers the
preset tidal volume with a constant flow during
the preset inspiratory time and at the preset
respiratory rate.
The time for inspiration and expiration is
configured by setting the I:E ratio or Ti
(inspiration time).
The following parameters are set:
1. Tidal Volume (ml) or the Minute Volume
(l/min)
2. Respiratory Rate (b/min)
3. PEEP (cmH
illustration above)
4. I:E ratio / Insp. time
5. Inspiratory rise time (%/s)
6. Pause time (%/s)
7. Trigg. Flow / Trigg. Pressure
8. Gas mix (O
2
9. O concentration (%)
2
10. Fresh gas flow (l/min)
11. Agent concentration (%)
216
|
O, dotted line in
2
/Air or O /N O)
2 2
The airway pressure is dependent on the tidal
volume, PEEP setting, inspiration time and the
resistance and compliance of the respiratory
system. The set tidal volume will always be
delivered. An increase in the resistance and
decrease in compliance will lead to an
increased airway pressure.
To protect the patient's lungs from excessive
pressure, it is very important to set the upper
pressure limit to a suitable value.
It is possible for patients to trigger extra
breaths if they can overcome the pre-set
trigger sensitivity. The flow during inspiration
is constant.
FLOW-i 4.2, User's Manual