Patent ID: 6431171
Filing Date: 2002-08-13
Classification: A61M

Abstract:
An apparatus for controlling gas delivery to a patient to maintain effective respiratory function, said apparatus including:a monitoring component adapted to monitor at least one physiological variable of a patient during an application of a positive gas pressure to an airway of the patient, to provide monitoring information representing the at least one physiological variable; and a processing component including a deriving component in communication with the monitoring component, adapted to receive the monitoring information and, based on the monitoring information, to derive data representing a respiratory event characterized by a vibration of body tissue along the airway; said processing component further including a determining component coupled to receive said data and including an algorithm operable to generate a control signal based on said data, said control signal being substantially 180 degrees out of phase relative to said data and being applicable to control a gas delivery device to modulate said positive gas pressure in a manner to counteract said vibration of the body tissue, thereby tending to cancel the respiratory event.