Method and apparatus for improving the comfort of CPAP
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United States of America Patent
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Dec 2, 2014
Issued Date -
N/A
app pub date -
Sep 26, 2006
filing date -
Jun 20, 2003
priority date (Note) -
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Abstract
A low-cost CPAP apparatus in which, upon detection of the transition from inhalation to exhalation, the blower motor is de-energized to allow it to freewheel. When the pressure in the patient mask (or whatever interface is utilized) reaches a minimum pressure level during exhalation, the motor is re-energized and its speed is controlled so to maintain the pressure at a level suitable for exhalation. Upon detection of the transition from exhalation to inhalation, the motor speed is increased to provide higher pressures in the patient mask suitable for inhalation.
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