CareFusion AVEA - SIMV Waveform; Synchronized Intermittent Mandatory Ventilation (SIMV)

AVEA ventilator systems Chapter 3: Ventilator Operation 79
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Pressure
Synchronized Intermittent Mandatory Ventilation (SIMV)
In SIMV mode, the ventilator can deliver both mandatory and demand breath types. Mandatory breaths are delivered
when the SIMV “time window” is open and
one of the following occurs:
• A patient effort is detected;
• The breath interval has elapsed with no patient effort detected;
• The MANUAL BREATH key has been pressed.
Figure 3–14: SIMV Waveform
The breath interval is established by the preset breath rate. It resets as soon as the interval time determined by the set
breath rate has elapsed, or when the MANUAL BREATH key is pressed.
Assist Window Open
Patient triggered Volume breath
Pressure supported breath
Time