Maquet SERVO-i V3.1, User Manual, Page: 26 / 283

24
Servo
…
User´s manual
US edition
Order No: 66 00 261
2
Infant Adult Universal Options
Weak patient effort
1. At a Trigger sensitivity level above zero
(0), the ventilator senses deviations in
the bias flow caused by inspiratory
efforts of the patient. The more to the
right on the scale, the more sensitive is
the trigger function.
2. Weak inspiratory effort.
3. Very weak inspiratory effort.
For further information see page 167.
WARNING! If the trigger sensitivity is set too
high, a self triggering (auto-triggering)
condition may be reached. This condition
can also be reached if there is leakage in the
breathing system, e.g. if an uncuffed
endotracheal tube is used. Triggering will
then be initiated by the system and not by the
patient.This should always be avoided by
decreasing the trigger sensitivity.
Stronger patient effort
1. At a Trigger sensitivity level below zero
(0), the ventilator senses negative
pressures created by the patient.
Required preset negative pressure to
initiate a breath is shown numerically.
The more to the left on the scale, the
more effort is required to trigger.
2. Stronger patient effort.
For further information see page 167.
WARNING! The trigger sensitivity bar has
different colors based on the setting. A green
bar indicates a normal setting for the flow
triggering. The risk of self-triggering
increases when the bar is red. A white bar
indicates that pressure triggering is required.
SVX-141_EN
5
Trigg. Flow
SVX-142_EN
-2
Trigg. Pressure
Trigger sensitivity