Monnal T60 Advanced - User manual
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Use of the ‘RR min’ parameter: in the absence of inspiratory demand for a time exceeding
‘1/RR minimum’ of a minute. The ventilator initiates a pressure support cycle. The RR low
alarm can be associated with this safety feature by setting it to a value above RR min.
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Use of the ‘TI max’ parameter: in the event of a leak in the circuit, the flow rate expiratory
trigger may not be activated; in this case, the limitation on inspiration time allows the pa-
tient to enter the expiratory phase.
Note:
When this mode is launched during non-invasive ventilation, apnea ventilation is deac-
tivated for two minutes.
4.6.5 SIMV
[SIMV = Synchronized Intermittent Mandatory Ventilation]
Principle
SIMV Mode combines mandatory assisted controlled ventilation and pressure supports spontaneous
patient ventilation between the controlled cycles.
Set-points
FiO2
Inspired oxygen fraction
VT
Tidal volume (mL)
RR SIMV
Determines the frequency of the mandatory cycles (bpm)
PEEP
Positive end of expiration pressure (cmH
2
O)
Tins
Determines the inspiratory time of the mandatory cycles (bpm)
Tplat
Inspiratory plateau time of the mandatory cycles (% TI)
I. Trig
Inspiratory trigger (L/min)
Flow rate Form of flow rate insufflated to the patient: Constant or decelerated
PSV
Pressure support ventilation
delivered during the spontaneous cycles (cmH
2
O)
TI max
Maximum inspiration time of spontaneous cycles (s)
Slope
Pressure support pressure rise slope (cmH
2
O/s)
Trig. E
Expiratory trigger (% of peak inspiratory flow).
In this ventilation mode, the controlled cycle (VCV) delivers a fixed volume at the set frequency RR
SIMV. A SIMV period arises from this frequency.
e.g. for a SIMV frequency set to 10 cycles per minute, the SIMV period between two controlled (VCV)
cycles is 6 seconds.
In the event of absence of patient respiratory activity, this mode provides the guarantee of controlled
ventilation (VCV).
When the patient has regular and detectable respiratory activity, the unit responds by:
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