Maquet SERVO-i V3.1, User Manual, Page: 37 / 283

35
Servo
…
User´s manual
US edition
Order No: 66 00 261
Infant Adult Universal Options
2
Functional description
Volume Control
Volume Controlled ventilation ensures that
the patient receives a certain pre-set Minute/
Tidal Volume.
Servo-i Ventilator can be configured to set
Tidal Volume or Minute Volume. The
following parameters are set:
1. Tidal Volume (ml) or the Minute Volume
(l/min)
2. Respiratory Rate (b/min)
3. PEEP (cmH
2
O)
4. Oxygen concentration (%)
5. I:E ratio / Insp. time
6. Pause time (%/s)
7. Inspiratory rise time (%/s)
8. Trigg. Flow / Trigg. Pressure
The airway pressure is dependent on the
tidal volume, 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 the patient to trigger extra
breaths if they can overcome the pre-set
trigger sensitivity. It is also possible for the
patient, by their own inspiratory efforts, to
receive a higher inspiratory flow and Tidal
Volume during an inspiration than pre-set.
The flow during inspiration is constant. The
patient can trigger extra breaths.
Controlled ventilation - Volume Control