Maquet SERVO-i V3.1, Руководство пользователя, Страница: 25 / 283

23
Servo
…
User´s manual
US edition
Order No: 66 00 261
Infant Adult Universal Options
2
T
rigger functionality
This determines the level of patient effort to
trigger the ventilator to inspiration.
Trigger sensitivity can be set in flow
triggering (Trigg. Flow) or pressure triggering
(Trigg. Pressure). Normally flow triggering is
preferable as this enables the patient to
breath with less effort.
The sensitivity is set as high as possible
without self-triggering. This ensures that
triggering is patient initiated and avoids auto-
cycling by the ventilator.
Pressure triggering can be set in the range
-20 to 0 cmH
2
O (in reference to set PEEP
level, white area on the bar).
When the trigger sensitivity is set above 0
(green and red area on the bar), flow
triggering is set, i.e. the amount of the bias
flow that the patient has to inhale to trigg a
new breath. The sensitivity can be set from
100% of the bias flow (left), to 0% of the bias
flow (right). For information about the
different colors of the bar refer to page 167.
Important: In NIV it is not possible to set
trigger sensitivity.
The ventilator continuously delivers a gas
flow during expiration, which is measured in
the expiratory channel.
1. Inspiration.
Bias flow during expiration.
2. Bias flow Infant 0.5 l/min.
Bias flow: Adult 2 l/min.
5
Trigg. Flow
-2
Trigg. Pressure
SVX-638_EN
T r i g g e r s e n s i t i v i t y