Therapy Information; Autoset Mode; Normal Airway; Flow Limitation - ResMed AirSense 11 Manual

Therapy Information

The following modes are available on the AirSense 11 device:
Device
AirSense 11 AutoSet
AirSense 11 CPAP
AirSense 11 Elite

AutoSet mode

The treatment pressure required by the patient may vary due to changes in sleep state, body position and
airway resistance. In AutoSet mode, the device provides only that amount of pressure required to maintain
upper airway patency.
The device analyzes the state of the patient's upper airway on a breath-by-breath basis and delivers
pressure within the allowed range according to the degree of obstruction. The AutoSet algorithm adjusts
treatment pressure as a function of three parameters: inspiratory flow limitation, snore, and apnea.

Normal airway

When the patient is breathing normally, the inspiratory flow measured by the device as a function of time
shows a typically rounded curve for each breath.

Flow limitation

As the upper airway begins to collapse, the shape of the inspiratory flow-time curve changes. The
AirSense 11 recognizes and treats traditional as well as less common flow-limited breath wave forms.
AutoSet
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Modes available
AutoSet for Her
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CPAP
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English 5