Simv; Selecting Simv Mode - Dräger Cato Instructions For Use Manual

SIMV

Selecting SIMV mode

Secretion aspirator may only be used in
[
»MAN/SPONT« mode or with disconnected
Y-piece.
In order to prevent the mechanical mandatory ventilation
stroke from being applied during the expiratory sponta-
neous breathing phase, a special trigger ensures that the
mandatory ventilation stroke is controlled by the patient
and consequently synchronized with spontaneous
breathing (this is described in detail on page 133).
PEEP is not active in SIMV mode!
After switching on, the ventilation parameters
programmed upon delivery are active in SIMV mode.
The ventilation parameters of the preceding mode remain
active when changing from IPPV to SIMV mode and vice
versa!
Settings upon delivery of new equipment:
V Tidal volume
T
f IMV frequency
IMV
P Maximum ventilation pressure
max
T :T Inspiration/expiration time ratio
I E
T :T Inspiration pause/inspiration
IP I
time ratio
If the ventilation frequency is equal to or greater than
6 breaths per minute in »SIMV« mode, the IPPV alarm
limits become active and the alarm mode »IPPV alarm
limits« is automatically displayed on the monitor.
If the ventilation frequency is less than 6 breaths per
minute in »SIMV« mode, special SIMV alarm limits
become active and the advisory message »SIMV alarm
limits« flashes in the status field of the monitor for five
seconds. This message does not require confirmation.
When setting frequencies of more than 5 breaths per
minute, the system automatically reverts to the IPPV
alarm limits and indicates this on the monitor.
The ventilation parameters are adjusted in the same way
as in IPPV mode:
1 Press »SIMV«.
2 Display in dialogue field:
SIMV Mode ?
3 Press rotary control to confirm –
ventilation starts.
The parameters P , V
max
movement are displayed on the ventilator –
the monitor is also started and the alarm limits for
SIMV are activated.
Refer also to the chapter describing the »Alarm
concept« on page 65.
0.6 L
12 breaths/min.
25 mbar
1 : 1.7
10 %
, f , PEEP and piston
T IMV
Operation
SIMV
Selecting SIMV mode
1
2
3
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