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3.3.8 PRVC
Pressure Regulated Volume Control (PRVC) breaths are pressure breaths where the
pressure level is automatically modulated to achieve a preset volume. PRVC breaths are:
Controlled by pressure (inspiratory + PEEP) and volume;
Limited by pressure (inspiratory + PEEP + margin);
Cycled by time.
PRVC breath operation is as follows:
When PRVC is selected, a decelerating flow, volume controlled test breath, to the set tidal
volume to the patient. The demand system is active during
this test breath.
The ventilator sets the target pressure at the end inspiratory pressure of the test breath for the
first pressure control breath.
The next breath and all subsequent breaths are delivered as pressure control breaths.
The inspiratory pressure is based on the dynamic compliance of the previous breath and the
set tidal volume.
The maximum step change between two consecutive breaths is 3 centimeters of water
pressure.
The maximum tidal volume delivered in a single breath is determined by the volume limit
setting.
3.3.9 SynchronizedNebulizer
When an in-line nebulizer is attached and the Nebulizer button is pressed, the ventilator supplies
nebulized gas to the patient at 6 L/min.
The standard in-line nebulizer is powered by 100% oxygen for delivery of prescribed medications
in the ventilator circuit. When nebulization is active, the nebulizer flow is synchronized with the
inspiratory phase of each breath and can be adjusted in increments of 1 minute for a maximum of
60 minutes.
Nebulization model activate, when into the standby mode the mark nebulization don 't disappear
and nebulization time to stop. After working and the nebulization timing to continue.
You may end the nebulization period early by pushing the Nebulizer button again
CAUTION：Use of an external flow meter to power the nebulizer is not recommended.
WARNING ：Using the nebulizer may impact your patient‟s volumes.
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