Dräger Fabius, Instructions For Use Manual, Page: 99 / 232

Instructions for Use Fabius MRI SW 3.n
99
Operation
Based on a defined frequency ( Freq ) and a defined
ratio of inspiratory time to expiratory time ( Ti:TE ), a
tidal volume ( V
T
) is applied at a constant inspiration
flow ( Insp Flow ).
The inspiration flow ( Insp Flow ) results from the
tidal volume ( V
T
) and the ratio of inspiratory pause
time to inspiratory time ( T
IP
:T
I
).
When T
IP
:T i is set to 0, the tidal volume ( V
T
) is
applied at the lowest inspiration flow ( Insp Flow )
which is possible at the corresponding frequency
(
Freq ). In addition, a positive end-expiratory pres-
sure ( PEEP ) can be set.
To avoid too high pressures, the alarm limit P
MAX
can be set according to the physiological state of
the patient.
The lower pressure limit P
AW
low is used for pres-
sure monitoring to detect apneas (disconnection)
and continuous pressure. An alarm is generated
when the pressure curve does not cross the pres-
sure threshold either from above or below.
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1
P
AW
P
MAX
PEAK
PLAT
P
AW
low
PEEP
T
I
T
E
Flow
Freq
V
T
T
IP
T
I
insp Flow
Time
Time