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23 3
Servo
…
User´s manual
US edition
Order No: 66 00 261
Infant Adult Universal Options
2
T
rigger functionality igger functionality gger functionality ger functionality er functionality r functionality functionality functionality unctionality nctionality ctionality tionality ionality onality nality ality lity ity ty y
This determines the level of patient effort to
trigger the ventilator to inspiration.
gger the ventilator to inspiration.
Trigger sensitivity can be set in flow flow
triggering (Trigg. Flow) or pressure triggering
(Trigg. Pressure
Pressure). Normally flow triggering is y flow triggering is
preferable as this enables the patient to
breath with less effort.
The sensitivity is set as high as possible
vity is set as high as possible
without self-triggering. This ensures that ng. This ensures that
triggering is patient initiated and avoids auto-
cycling by the ventilator.
ycling by the ventilator.
Pressure triggering can be set in the range
-20 to 0 cmH
20 to 0 cmH
2
O (in reference to set PEEP EEP
level, white area on the bar).
When the trigger sensitivity is set above 0
gger sensitivity is set above 0
(green and red area on the bar), flow 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
The sensitivity can be set from
100% of the bias flow (left), to 0% of the bias 00% of the bias flow (left), to 0% of the bias
flow (right). For information about the ght). For information about the
different colors of the bar refer to page 167. lors of the bar refer to page 167.
Important: In NIV it is not possible to set
trigger sensitivity.
The ventilator continuously delivers a gas he ventilator continuously delivers a gas
flow during expiration, which is measured in xpiration, which is measured in
the expiratory channel. y channel.
1. Inspiration.
Bias flow during expiration. during expiration.
2. Bias flow Infant 0.5 l/min. w Infant 0.5 l/min.
Bias flow: Adult 2 l/min. dult 2 l/min.
5
Trigg. Flow
-2
Trigg. Pressure
SVX-638_EN
Trigger sensitivity Trigger sensitivity rigger sensitivity igger sensitivity gger sensitivity ger sensitivity er sensitivity r sensitivity sensitivity sensitivity ensitivity nsitivity sitivity itivity tivity ivity vity ity ty y