IMPELLER FOR A WEARABLE POSITIVE AIRWAY PRESSURE DEVICE
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United States of America Patent
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Issued Date -
Jul 31, 2008
app pub date -
Jan 29, 2007
filing date -
Jan 29, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for increasing output pressure of a blower unit in a Positive Airway Pressure (PAP) device, the blower unit having a blower rotatable about an axis of rotation. The method includes the steps of ingesting air into the blower unit, successively accelerating the ingested air in a direction substantially radial to the axis of rotation and a direction substantially parallel to the axis of rotation for generating a flow of compressed air; and exhausting the accelerated air from the blower unit. A PAP device with the improved blower generates increased air pressure compared to prior art devices or produces at least the same air pressure at a reduced size.
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