Process for controlling breathing apparatus

Details Process for controlling breathing apparatus Process for controlling breathing apparatus

A - Human Necessities

61

M

A61M 16/00 (2006.01) A61B 5/085 (2006.01)

Patent

CA 2211768

A process for controlling an apparatus for treating sleep apnea includes the continuous measurement of values for the phase angle and pressure amplitude corresponding to respiratory resistance, and determining individual respiratory resistance of a patient's pressure amplitude by means of oscilloresistometry, and regulating the regulatory gas pressure in dependence of such values. Better control is achieved by filtering significant changes of the phase angle from the signal of phase angle, and generating a control signal from such changes for adapting respiratory gas pressure.

Cette invention concerne un procédé de commande d'un appareil de traitement de l'apnée du sommeil, qui comprend le mesurage continu de l'angle de phase et de la pression correspondants à la résistance respiratoire, la détermination de la résistance respiratoire d'un patient à partir de la pression mesurée par oscillorésistométrie et la régulation de la pression d'alimentation en fonction des valeurs ci-dessus mesurées. Une meilleure régulation est réalisée en extrayant les variations significatives de l'angle de phase par rapport à la valeur de consigne et en générant un signal de commande proportionnel à l'amplitude de la variation pour adapter la pression d'alimentation en air.

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