Maquet SERVO-air, Руководство пользователя

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5.4.1 Volume Control in detail
The circles in the figure indicate patient triggering.
• VC ensures a preset tidal volume during a
preset inspiratory time at a preset
respiratory rate.
• The inspiratory flow is constant or linearly
decelerating and depends on the ventilatory
settings.
• Inspiration starts in accordance with the
preset respiratory rate or when the patient
triggers.
• If the patient makes an inspiratory effort
during the inspiratory period, when flow
adaption is enabled and flow pattern is
100%, the ventilator system will switch to
PS to satisfy the patient´s flow demand, as
shown in the second breath in the figure.
Expiration starts:
• When the preset tidal volume is delivered
and after the preset pause time.
• When the flow returns to the set value after
the preset tidal volume is delivered and after
the preset pause time (flow adaptation). The
patient is however always guaranteed an
expiration time corresponding to at least
20 % of the total breath.
• If the upper pressure limit is exceeded.
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SERVO-air Ventilator System v2.2, User's Manual
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