AVEA ventilator systems Chapter 1: Introduction 3
L2786 Rev. M
Full range of Patient Size
You can select a patient size of Adult, Pediatric, or Neonate. Once the selection is made, the ventilator offers only those
parameters, which are available for your selected patient size.
Non-Invasive Ventilation
The ventilator can perform non-invasive ventilation with a standard dual limb circuit. Leak compensation should be
turned on when using this feature. To turn leak compensation on, use the touch screen control displayed in the Ventilator
Set-Up Screen.
Note:
Non invasive ventilation requires the use of a snug fitting mask with no bleed holes. Excessive leaks around the mask
may result in false triggering of the ventilator or assertion of disconnect alarms.
Leak Compensation
Leak Compensation is used to compensate for baseline leaks, which may occur at the patient mask interface or around
the patient’s endotracheal tube. It only provides baseline leak compensation and is not active during breath delivery.
During exhalation, PEEP is maintained by the cooperation of the Flow Control Valve (FCV) and the Exhalation Valve
(ExV). The ExV pressure servo is set to a target pressure of PEEP and the FCV pressure servo is set to a pressure
target of PEEP - 0.4 cmH
2
O. The ExV servo relieves when the pressure is above its target and the FCV supplies flow
when the pressure drops below its target up to a maximum flow rate for the patient size
Range: Off/On
Default: Off
Circuit Compliance Compensation
When Circuit Compliance is active, the volume of gas delivered during a volume controlled or targeted breath is
increased to include the set volume, plus the volume lost due to the compliance effect of the circuit. Circuit Compliance
is active for the set Tidal Volume during volume control ventilation, the Target Tidal Volume in PRVC mode and for
Machine Volume. It is only active in Adult and Pediatric applications.
Exhaled volume monitors for all modes and breath types are also adjusted for the compliance compensation
volume.
Range: 0.0 to 7.5 ml/cmH
2
O
Default: 0.0 ml/cmH
2
O
The ventilator automatically measures Circuit Compliance during the Extended Systems Test (EST). The value cannot
be entered manually.
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