Mindray SynoVent E5, Operator'S Manual

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6-13
5. [ Exp ％ ]: Expiration trigger level
6. [ Δ Papnea ]: Pressure of apnea ventilation
7. [ fapnea ]: Frequency of apnea ventilation
8. [ Tinsp ]: Inspiration time
9. [ F-Trig ] or [ P-Trig ]: Inspiration trigger level
6.7.7 V-SIMV and P-SIMV
SIMV is designed to guarantee minimum ventilation frequency. Volume control ventilation or
pressure control ventilation in SIMV mode is delivered within the trigger window and is
delivered automatically at the end of the trigger window if not triggered within the trigger
window. Outside the trigger window, spontaneous breathing is supported.
The following figures show typical waveforms in V-SIMV+PSV and P-SIMV+PSVmodes.
Paw
Flow
Time
Time
SIMV cycle
5 s 5 s
Trigger
window
5 s
SIMV cycle
Volume
control
Insp. trigger
△
Psupp
V-SIMV+PSV
Trigger
window
Trigger
window
Volume
control