6.
PEEP
7.
Flow waveform
8.
TV
Figure 11-8 • 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 shorter the inspiratory
phase.
An apnea backup mode is provided if the patient stops breathing.
When setting this mode the clinician adjusts the inspiratory pressure
(Pinsp), respiratory rate (RR), and the inspiratory time (Tinsp). As
long as the patient is triggering the ventilator and the apnea alarm
does not activate, the patient will get pressure-supported breaths
and the ventilator will not deliver machine breaths.
If the patient stops triggering the ventilator for the set apnea delay
time, the apnea alarm will activate and the ventilator will
automatically switch to the backup mode that is SIMV PCV. Once in
this mode the ventilator will begin delivering machine pressure
controlled breaths at the inspiratory pressure level, inspiratory time,
and rate that the user has set. If, during this time, the patient takes
spontaneous breaths in between the machine breaths, the patient
will receive pressure supported breaths.
PSVPro mode settings:
•
Psupport
•
PEEP
•
Trig Window
•
Flow Trigger
•
End of Breath
•
Pmax
•
Backup Time
Aisys CS²
11-32
2067226-001
Summary of Contents for auisys cs2
Page 1: ...Aisys CS User s Reference Manual Software Revision 10 X ...
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Page 60: ...3 Set the alarm limits to clinically appropriate settings Aisys CS 3 12 2067226 001 ...
Page 87: ...3 Push the drain button to empty any water in the condenser 3 Operation 2067226 001 3 39 ...
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Page 178: ...System pneumatic circuit AB 75 270 Aisys CS 11 2 2067226 001 ...
Page 230: ...4 Select Back to return to the Gas Usage menu Aisys CS 12 4 2067226 001 ...
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Page 268: ...Aisys CS User s Reference Manual English 2067226 001 06 13 C 18 05 02 Printed in USA ...