Dräger Primus Infinity Empowered, Краткое руководство пользователя, Страница: 29 / 34

Quick Reference Guide Primus Infinity Empowered SW 4.5n 29
Principles of Operation
Volume Mode AutoFlow –
Volume AF (optional)
Volume AF is a pressure controlled ventilation mode
with a guaranteed tidal volume V
T
and frequency freq.
as well as optional synchronization activation and vari-
able pressure support for spontaneous breathing efforts
(optional).
Volume AF combines the advantages of pressure con-
trolled and volume controlled ventilation mode. The set
tidal volume
V
T
is delivered in a pressure controlled
ventilation mode. The inspiratory pressure automatical-
ly adapts to the set tidal volume, limited by a maximum
pressure
P
MAX
. When starting the ventilation with Vol-
ume AF , the first mandatory breath is volume controlled
in order to identify the necessary pressure level, if not
known from a previous ventilation mode.
Primus Infinity Empowered automatically adapts the in-
spiratory pressure to the changing lung condition in
steps of max. ±3 mbar per breathing cycle.
The delivery of tidal volume for one breathing cycle is
limited to 130 % of the set tidal volume. If the volume
limitation is active, the ventilation pressure for the fol-
lowing breath will be reduced to 75 % of the target pres-
sure, but limited to a maximum of 15 mbar above
PEEP .
097
Pressure
P
INSP
Flow
T
SLOPE
T
EXP
1/ Freq.
T
INSP
Time [s]
Time [s]
Sync.
off
P
MAX