Maquet Servo-i Adult, User Manual, Page: 46 / 283

44
Servo
…
User´s manual
US edition
Order No: 66 00 261
2
Infant Adult Universal Options
Inspiratory Cycle-off is important for the cle-off is important for the
patient’s comfort and ventilator
synchronization with the patient. Inspiratory
zation with the patient. Inspiratory
Cycle-off is the point when inspiration
switches to expiration. E.g. for a patient with
xpiration. E.g. for a patient with
expiratory resistance the inspiratory Cycle- ce the inspiratory Cycle-
off should be set to a high value to guarantee be set to a high value to guarantee
enough time for expiration.
Note: It is important to monitor the
corresponding Tidal Volume levels.
Volume levels.
Inspiration: when the patient triggers a ggers a
breath, gas flows into the lungs at a constant
pressure. Since the pressure provided by the
Since the pressure provided by the
ventilator is constant, the flow will decrease ator is constant, the flow will decrease
until the Inspiratory Cycle-off is reached. Cycle-off is reached.
Expiration starts when: n starts when:
– The inspiratory flow decreases to the
pre-set Inspiratory Cycle-off level. Inspiratory Cycle-off level.
– If the upper pressure limit is exceeded. mit is exceeded.
– If the flow drops to a flow range between ge between
25% of the peak flow and lower limit for k flow and lower limit for
Inspiratory Cycle-off fraction level and Cycle-off fraction level and
the spent time within this range exceeds me within this range exceeds
50% of the time spent in between the % of the time spent in between the
start of the inspiration and entering this d entering this
range.
The maximum time for inspiration is: piration is:
• Infant 1.5 seconds
• Adult 2.5 seconds 2.5 seconds
SVX-661_XX
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