
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.
109
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
Summary of Contents for Fabius
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