Ventilation Modes; Assist Control Ventilation (A/C) - CareFusion AVEA Operating Instructions Manual

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Ventilation Modes

Leak Compensation.
The ventilator incorporates a leak compensation system. This system compensates for baseline leaks at the patient -
interface. To activate leak compensation, use the touch screen control displayed in the Setup screen.

Assist Control Ventilation (A/C)

This is the default mode for all patient types. In Assist Control ventilation mode, all breaths initiated and delivered are
mandatory breaths. The initiation of a breath is triggered by one of the following:
Patient effort activates the inspiratory trigger mechanism,
•
The breath interval, as set by the RATE control, times out,
•
The operator presses the MANUAL BREATH key.
•
Initiation of a breath by any means resets the breath interval timing mechanism. It is possible for the patient to initiate
every breath if he/she is breathing faster than the preset breath rate. If the patient is not actively breathing, the ventilator
automatically delivers breaths at the preset interval (set breath rate).
Breath Interval
elapsed
Figure 3–13: Assist Control Ventilation Waveform
Chapter 3: Ventilator Operation
TIME
1 Mandatory Breath (Breath interval expired)
2 Mandatory Breath (Patient triggered)
Breath Interval
elapsed
Operator's manual
L2786 Rev. M