VersaMed iVent201 - Mandatory Volume Control Breath

Care, Maintenance, and Tests
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2. If the target flow is set higher than the ventilator is able to provide, due
to high resistance and/or low compliance of the patient/ventilator circuit,
the ventilator will attempt to deliver as high a flow as possible during the
inspiratory phase. Under these conditions, inspiratory time will be
increased in order to deliver the set tidal volume and the set peak flow
reading will flash.
3. During SIMV, Adaptive Flow
TM
is always operational, even if a manual
peak flow is set. If the patients average spontaneous flow exceeds the set
manual peak flow, Adaptive Flow
TM
will drive the delivered mandatory
breath flow to approximately 80% of the spontaneous inspiratory flow.
D.3.2 Mandatory Volume Control Breath
Mandatory volume control breath is pressure limited mandatory breath in which
the ventilator delivers a set tidal volume at an Adaptive Flow
TM
or manually set
value. The flow is controlled by the ventilator in a way that the flow at the end of
the inspiratory phase will be half of the peak inspiratory flow. This breath type
can be initiated by the ventilator (time-triggering), or by the patient (pressure or
flow triggering). Once initiated, it is always controlled and terminated by the
ventilator. The tidal volume, breath rate, inspiratory time (adaptive or manual)
and pressure limit are set by the operator using the front panel controls and
display.
Figure D-3: Volume Control Breath Waveform