Vent arrangement for respiratory mask

A control system provides automated control of gas washout of a patient interface, such as a mask or nasal prongs. A gas washout vent assembly of the system may include a variable exhaust area, such as one defined by gears, radial exhaust revolvers and/or flow diverters for a conduit having a variab...

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Bibliographische Detailangaben
Hauptverfasser: NAGORNY, ALEKSANDR S, FARRUGIA, STEVEN PAUL, SEARS, DAVID BRENT, SAMPIETRO, JOSEPH M, KRUM, RICHARD G
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A control system provides automated control of gas washout of a patient interface, such as a mask or nasal prongs. A gas washout vent assembly of the system may include a variable exhaust area, such as one defined by gears, radial exhaust revolvers and/or flow diverters for a conduit having a variable gas passage channel. The vent assembly may be attached substantially near or included with the patient interface. An actuator of the assembly, such as a solenoid, motor or voice coil, manipulates the vent assembly. The actuator may be configured for control by a processor to change the exhaust area of the vent assembly based on various methodologies including, for example, sleep detection, disordered breathing event detection and/or leak detection.