METHODS AND APPARATUS FOR CONTROLLING MASK LEAK IN CPAP TREATMENT

摘要

A method of operating a device for treating sleep disordered breathing (SDB), wherein the device provides continuous positive airway pressure during sleep, includes determining whether treatment pressure at the patient interface is below a desired value, in response to the determining, increasing pressure generated by the flow generator, in response to the increasing, making a determination that the increase in flow generator pressure has resulted in less than a desired increase in treatment pressure at the patient interface, and in response to the determination, reducing or inhibiting further increase of the flow generator pressure.

主权项

1. An apparatus configured for sealed delivery of a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to an entrance of a patient's airways including at least an entrance of a patient's nares while the patient is sleeping to treat sleep disordered breathing (SDB), the apparatus comprising:
a blower configured to generate the flow of pressurized breathable gas; and a controller configured to (1) adjust the blower to increase the pressure of the breathable gas when a treatment pressure is below a predetermined threshold and (2) reduce the pressure of the breathable gas or inhibit a further increase in the pressure of the breathable gas when the adjustment of the blower results in a less than a predetermined increase in the treatment pressure.