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Carestation
620/650/650c (A1)
11-32
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7
1.
Paw waveform
2.
Tinsp
3.
Spontaneous breathing period
4.
Trig Window
5.
Variable pressure to deliver desired TV
6.
PEEP
7.
Flow waveform
8.
TV
Figure 11-12 • SIMV PCV-VG waveforms
PSVPro mode
PSVPro is pressure supported ventilation with apnea backup.
PSVPro is a spontaneous mode of ventilation that provides a
constant support pressure once the ventilator senses that the patient
has made an inspiratory effort. In this mode, the clinician sets the
Pressure Support (Psupport) and PEEP levels. The patient
establishes the rate, inspiratory flow, and inspiratory time. The tidal
volume is determined by the pressure, lung characteristics, and
patient effort.
PSVPro uses an inspiration termination level that establishes when
the ventilator will stop the pressure-supported breath and cycle to the
expiratory phase. The inspiration termination level is user adjustable
from 5 to 75%. This parameter sets the percent of peak inspiratory
flow that the ventilator uses to end the inspiratory phase of the
breath and to cycle into the expiratory phase. If the inspiration
termination is set to 30% then the ventilator will stop inspiration when
the flow decelerates to a level equal to 30% of the measured peak
inspiratory flow. The lower the setting the longer the inspiratory time
and conversely, the higher the setting the shorter the inspiratory
phase.
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2076152-001
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