Mindray WATO EX-65 - Synchronized Intermittent Mandatory Ventilation (SIMV); Parameter Range and Default Value in PCV Mode; Simv-VC; Simv-Pc

4-11
4.4.4.6 Parameter Range and Default Value in PCV Mode
Parameter Range Step Default
Pinsp 5 to 60 cmH2O 1 cmH2O 15 cmH2O
Rate 4 to 100 BPM 1 BPM 12 BPM
I:E 4:1 to 1:8 0.5 1:2
Plimit 10 to 100 cmH2O 1 cmH2O 30 cmH2O
PEEP OFF, 4 to 30 cmH2O 1 cmH2O OFF
4.4.5 Synchronized Intermittent Mandatory Ventilation (SIMV)
This anesthesia machine supports two modes of SIMV: SIMV-volume control (SIMV-VC)
and SIMV–pressure control (SIMV-PC).
4.4.5.1 Description
 SIMV-VC
SIMV-VC means to deliver volume controlled breathing to the patient by phase at the preset
intermission. In the SIMV-VC mode, the ventilator waits for patient’s next inspiration based
on the specified time interval. The sensitivity depends on [Trigger Level] (optional flow and
pressure). If [Trigger Level] is reached within the trigger waiting time (called synchronous
[Trigger Window]), the ventilator delivers volume controlled breathing synchronously with
the preset tidal volume and inspiratory time. If the patient does not inspire within the
[Trigger Window], the ventilator delivers volume controlled breathing to the patient at the
end of [Trigger Window].Spontaneous breathing outside of [Trigger Window] can acquire
pressure support.
 SIMV-PC
SIMV-PC means to deliver pressure controlled breathing to the patient by phase at the preset
intermission. In the SIMV-PC mode, the ventilator waits for patient’s next inspiration based
on the specified time interval. The sensitivity depends on [Trigger Level] (optional flow and
pressure). If [Trigger Level] is reached within the trigger waiting time (called synchronous
[Trigger Window]), the ventilator delivers pressure controlled breathing synchronously with
the preset tidal volume and inspiratory time. If the patient does not inspire within the
[Trigger Window], the ventilator delivers pressure controlled breathing to the patient at the
end of [Trigger Window].Spontaneous breathing outside of [Trigger Window] can acquire
pressure support.
If [Trigger Level] is reached outside of [Trigger Window], the ventilator delivers
pressure-supported ventilation based on the preset [Psupp].