Method and apparatus for improving the comfort of cpap

Details Method and apparatus for improving the comfort of cpap Method and apparatus for improving the comfort of cpap

A - Human Necessities

61

M

A61M 16/00 (2006.01) A61F 5/56 (2006.01)

Patent

CA 2529518

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.

L'invention concerne un appareil bon marché destiné à fournir une pression positive continue des voies aériennes (CPAP) dans lequel, lors de la détection du passage d'une aspiration à une expiration, le moteur souffleur d'air est désactivé, ce qui lui permet d'être en roue libre. Lorsque la pression, dans le masque d'un patient (ou toute autre interface utilisée), atteint un niveau de pression minimum pendant une expiration, le moteur est réactivé et sa vitesse est contrôlée afin de maintenir la pression à un niveau appropriée pour une expiration. Lors de la détection du passage d'une aspiration à une expiration, la vitesse du moteur augmente afin de fournir des pressions plus élevées dans le masque du patient appropriées pour une inspiration.

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