Operation
110
Instructions for use Primus Infinity Empowered SW 4.5n
Pressure Mode ventilation mode
Pressure is a pressure-controlled ventilation mode
with fixed pressure limitation PINSP and frequency
freq. (former PCV), as well as with optional syn-
chronization (former SIMV(PC)) and variable pres-
sure support for spontaneous breathing efforts
(former SIMV(PC)+PS, optional).
A continuous pressure is applied to the patient dur-
ing the inspiratory time T
INSP. The rate at which the
pressure curve rises is pre-set via the rise time
TS-LOPE. Synchronization and pressure support are
controlled by the sensitivity of the flow trigger and
the level of
∆
PPS. The maximum time interval for
controlled ventilation is set via the frequency. To
maintain a constant frequency, a time interval trig-
gered prematurely is compensated in the next cy-
cle.
Changes in lung compliance and ventilation param-
eters influence the tidal volume.
Some settable values are limited or mutually exclu-
sive so that specific combinations of therapy set-
tings are not possible, e.g., T
INSP 6.9 s at Freq.
100/min
098
25%
Pressure Trigger indicator
Trigger indicator
Trigger
on
∆
PPS
on
Flow trigger Flow-trigger window
Time [s]
P
INSP
Time [s]
∆
PPS
Flow
T
INSP
TSLOPE
TEXP
1/Freq.
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