Patent ID: 6640806
Filing Date: 2003-11-04
Classification: A61M

Abstract:
A pressure support system comprising:a pressure generating system adapted to produce a flow of breathing gas at an inspiratory positive airway pressure (IPAP) level and an expiratory positive airway pressure (EPAP) level that is less than the IPAP level; a conduit operatively coupled to the pressure generating system to deliver the flow of breathing gas to an airway of a patient; a sensor adapted to detect a physiological condition associated with such a patient receiving the flow of breathing gas; and a processor receiving an output of the sensor and providing a control signal to the pressure generating system, wherein the processor is programmed to control the pressure generating system so as to: a) deliver the flow of breathing gas to such a patient at the IPAP level during at least a portion of an inspiratory phase of such a patient, and to deliver the flow of breathing gas to such a patient at the EPAP level during at least a portion of an expiratory phase of such a patient, and b) automatically adjust a slope of a transition of pressure from the EPAP level to the IPAP level based on the output of the sensor.