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Note:
Although circuit compliance is displayed on the Setup screen it is not active for neonatal patients.
High circuit compliance with small tidal volumes may result in extended inspiratory times. This is a result of the delivery
of the circuit compliance volume at the set flow rate.
Setting extremely small delivered tidal volumes with Circuit Compliance Compensation not active and using a proximal
flow sensor may result in assertion of Patient Circuit Disconnect Alarms.
Humidification
You can select active or passive humidification (ON/active or OFF/passive). Active humidification assumes 99% RH;
passive assumes 60% RH when using an HME. This feature adjusts the BTPS correction factor to correct exhaled tidal
volumes.
Range:
Default:
Note:
Incorrect setting of the Humidification feature will affect monitored exhaled volume accuracy.
Heliox Delivery (Comprehensive only, option on Standard)
Using patented "Smart" connector technology, the Comprehensive model AVEA can deliver Heliox blended gas instead
of Medical air. By simply changing a connector on the back panel, the ventilator identifies the gas input and adjusts to
accommodate the change. All volumes (numeric and graphic) are automatically compensated for accurate display.
The clinical benefits of helium / oxygen gas are based on its significantly lower gas density when compared to nitrogen /
oxygen gas. This lower gas density allows the same volumetric (tidal volume) of gas to be delivered to the patient at a
significantly lower airway pressure. Additionally, the low-density properties of the gas allow it to diffuse past airway
obstructions or restrictions much easier than nitrogen / oxygen gas mixtures.
Note:
The Heliox "smart" connector is designed for use with an 80/20 Heliox tank only. Only a mixture of 20% oxygen and
80% Helium can be used as the Heliox gas supply.
If Heliox gas is connected this green icon displays in bottom right of the touch screen.
To set the Helium / Oxygen mixture during administration simply set the desired F
Helium.
For example:
Chapter 1: Introduction
Off/On
Active (ON)
A set F
of 35% will deliver a 65/35 Heliox mixture to the patient.
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2
Operator's manual
, the balance of the breathing gas is
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L2786 Rev. M
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Troubleshooting
