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ESO 2 ICU Ventilator 51 User Manual
Appendix
Advanced Spontaneous Breathing Modes
NOTE
Electronic PEEP does not function in Spontaneous Mode
or in any Patient Support Mode.
SIMV:
Synchronised Intermittent Mandatory Ventilation
NOTE
Check that SIMV is an enabled option on your ventilator
before attempting selection.
SIMV allows spontaneous breaths and a set mandatory
breath, synchronised with the start of a patient breath
Select SIMV on the main display
SIMV will be displayed on the main screen.
NOTE
1. The trigger window is pre-set to 60% of the BPM cycle
time.
2. The trigger is flow activated.
3. If Spirometry is disabled then SIMV is not available.
4. If the pressure limit and alarm are activated the
inspiratory phase is terminated
SIMV Settings
NOTE:
1. V
T
can be adjusted before SIMV is confirmed.
2. The trigger setting is adjustable between 0.7 and 4.0
L/min.
SIMV - No breathing effort by Patient
A = Cycle time (set from BPM)
B = Trigger window
C = Flat pressure trace (no breathing effort)
D = Mandatory breath at the end of the trigger window at the
set V
T
If the patient makes no effort to breathe during a cycle, a
mandatory breath, at the end of the trigger window, will still
be delivered at the preset volume and rate.
A A
B B
Pmax
PEEP
0 cmH2O
E D C
SIMV - Spontaneously Breathing Patient
A = Cycle time (set from BPM)
B = Trigger Window
C = Spontaneous breath
D = Trigger point
E = Mandatory breath at the set tidal volume (V
T
)
Inspiratory flow in the Trigger Window (generated
by the patient’s spontaneous breath) results in a
synchronised mandatory breath at a preset volume
and rate
A A
B
B
Pmax
PEEP
0 cmH2O
D
C