Breath Types and Therapy Modes
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SIMV-Pressure Mode
SIMV-Pressure mode delivers pressure and spontaneous breaths through a passive, or valveless circuit. When patient
effort is detected during a breath period, one assist breath will be delivered. Subsequent patient triggers within a breath
period will result in spontaneous breaths.
If patient effort is not detected during a breath period, V*Home will provide a mandatory pressure breath at the
beginning of the next breath period.
Both mandatory and assist breaths are delivered at the set Pressure Control (above PEEP),
2
over the set Inspiratory Time.
Spontaneous breaths are delivered at the set Pressure Support (above PEEP), and cycle with patient effort. When a
breath cycles, the pressure of the Ventec One-Circuit drops to the set PEEP.
CPAP Function
V*Home does not include a separate mode setting for CPAP. The CPAP function is achieved by setting the ventilator to
SIMV-Pressure (or SIMV-Volume) mode, and setting the Breath Rate and Pressure Support to zero. All breaths are
spontaneous, and are delivered at the set PEEP level.
High Flow Therapy
When the Mode control is set to a SIMV mode, a High Flow option is available to provide the patient with a set ow of
gas through a high ow nasal cannula or other interface. High Flow therapy is not intended for life support. Like the
CPAP function in SIMV modes, there is no set Breath Rate and all breaths are spontaneous.
2 In SIMV-Pressure mode, the peak pressure delivered during pressure breaths is the set Pressure Control plus the set PEEP. The peak
pressure delivered during spontaneous breaths is the set Pressure Support plus the set PEEP. Set the Pressure Control and Pressure
Support to the prescribed pressure to be delivered during inspiration, as an addition to the set PEEP. For example, a PEEP setting of
5 cmH2O and Pressure Control setting of 10 cmH2O will result in a peak pressure of 15 cmH2O for pressure breaths.
Breath PeriodBreath PeriodBreath Period
Mandatory Mandatory
Pressure
Control
Pressure
Support
PEEP
SpontaneousSpontaneousAssist Assist
PEEP
0
All breaths are Spontaneous
Flow
0