AUTOMATED CONTROL FOR DETECTION OF FLOW LIMITATION

An apparatus to detect partial obstruction comprising: a patient interface to carry a flow of breathable gas; a flow sensor coupled with the patient interface to generate a flow signal representing flow of the breathable gas through the patient interface; and a controller coupled with the flow senso...

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Bibliographische Detailangaben
1. Verfasser:	ARMITSTEAD, Jeffrey Peter
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	An apparatus to detect partial obstruction comprising: a patient interface to carry a flow of breathable gas; a flow sensor coupled with the patient interface to generate a flow signal representing flow of the breathable gas through the patient interface; and a controller coupled with the flow sensor to process the flow signal, characterized in that the controller is configured to control: a determination of a shape index indicative of a pattern of partial obstruction from the flow signal; a determination of a duty cycle measure from the flow signal; and a derivation of a flow limitation measure as a function of the determined shape index and the determined duty cycle measure.