Pressure Breaths; Time Cycled Pressure Limited (Tcpl); Pressure Regulated Volume Control (Prvc) - CareFusion AVEA Operating Instructions Manual

AVEA ventilator systems
Default is on. Can be turned off by accessing advanced setting of Peak Flow in Volume Controlled Ventilation.
2.
Pressure
breaths, which are:
Controlled by pressure (inspiratory + PEEP);
•
Limited by pressure (inspiratory + PEEP + margin);
•
Cycled by time or flow.
•
3.

Time Cycled Pressure Limited (TCPL)

Controlled by inspiratory flow;
•
Limited by pressure (inspiratory + PEEP);
•
Cycled by time, flow (inspiratory), or volume (Volume Limit).
•
Note:
TCPL breath type is only available for Neonates. This is the default breath type for neonate patients.
Note:
The ventilator will not allow the operator to set a Peak Inspiratory Pressure (Insp Pres or PSV + PEEP, or baseline
pressure in APRV / BiPhasic, greater than 90 cmH
that the Ppeak > 90 cmH
to less than or equal to 90 cmH
WARNING
Total resistance of the inspiratory and expiratory limbs of the breathing circuit with accessories should not
exceed 4cmH O at 5 L/min if inspiratory flows > 15 liters per minute are used in TCPL ventilation modes. For
2
instructions on how to perform a circuit resistance test (see "Appendix E: Sensor Specifications & Circuit
Resistance").
4.

Pressure Regulated Volume Control (PRVC)

automatically modulated to achieve a preset volume. PRVC breaths are:
•
•
•
PRVC breath operation is as follows:
When PRVC is selected, a decelerating flow, volume controlled test breath, to the set tidal volume with a 40 msec pause,
•
is delivered 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.
Inspiratory pressure is adjusted automatically by the ventilator to maintain the target volume. The maximum step
change between two consecutive breaths is 3 cmH
determined by the Volume Limit setting.
L2786 Rev. M
Chapter 3: Ventilator Operation
O. The operator must change the Inspiratory Pressure and or PEEP setting to limit the Ppeak
2
O.
2
Controlled by pressure (inspiratory + PEEP) and volume;
Limited by pressure (inspiratory + PEEP + margin);
Cycled by time or flow.
breaths (available for neonatal patients only), which are:
O). The ventilator will deliver an on screen Pop-Up Message stating
2
breaths are pressure breaths where the pressure level is
O. The maximum tidal volume delivered in a single breath is
2
75