36
6
Servo
…
User´s manual
US edition
Order No: 66 00 261
2
Infant
Adult
Universal
Options
Volume Controlled ventilation has, by
s, by
tradition, delivered each breath with a
constant flow and constant inspiratory and
piratory and
expiratory times, according to the settings.
The Servo-i gives the possibility to the
patient to modify both flow rate and timing.
nt to modify both flow rate and timing.
So, if a pressure drop of 3 cmH
2
O is detected
during inspiration, the ventilator cycles to
ycles to
Pressure Support with a resulting increase in
g increase in
inspiratory flow. When the flow decreases to
hen the flow decreases to
the calculated target level this flow will be
maintained until the set Tidal Volume is
delivered.
The waveform illustrations above show some
waveform illustrations above show some
practical consequences of this enhanced
quences of this enhanced
functionality.
• the top waveform shows the trace for a
waveform shows the trace for a
normal Volume Controlled breath
Controlled breath
• the second waveform shows a situation
m shows a situation
when inspiration is prematurely interrupted
as the set tidal volume has been delivered
been delivered
• the third waveform shows a situation
where the patient maintains a flow rate
patient maintains a flow rate
higher than the calculated target value.
d target value.
The set Tidal Volume has been delivered
been delivered
when calculated target flow is reached and
the inspiration is prematurely interrupted
piration is prematurely interrupted
• the bottom waveform, shows a situation
waveform, shows a situation
where the increased flow rate is
maintained into the expiratory period. The
piratory period. The
patient will receive a higher tidal volume
gher tidal volume
than set due to a higher flow/volume
demand than calculated.
calculated.
SVX-652_EN
Controlled ventilation - Volume Control
ontrolled ventilation - Volume Control
ntrolled ventilation - Volume Control
trolled ventilation - Volume Control
rolled ventilation - Volume Control
olled ventilation - Volume Control
lled ventilation - Volume Control
led ventilation - Volume Control
ed ventilation - Volume Control
d ventilation - Volume Control
ventilation - Volume Control
ventilation - Volume Control
entilation - Volume Control
ntilation - Volume Control
tilation - Volume Control
ilation - Volume Control
lation - Volume Control
ation - Volume Control
tion - Volume Control
ion - Volume Control
on - Volume Control
n - Volume Control
- Volume Control
- Volume Control
Volume Control
Volume Control
olume Control
lume Control
ume Control
me Control
e Control
Control
Control
ontrol
ntrol
trol
rol
oll