Cushion for a respiratory mask assembly

Details Cushion for a respiratory mask assembly Cushion for a respiratory mask assembly

2011-07-05

2011-07-05

Yu, Justine R (Department: 3771)

Surgery

Respiratory method or device

Face mask covering a breathing passage

C128S206210

Reexamination Certificate

active

07971590

ABSTRACT:
A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a cushion. The cushion has a non-face contacting portion structured to be connected to the frame, a face-contacting portion structured to engage the patient's face, and a central portion that interconnects the non-face contacting portion and the face contacting portion. The frame may be structured to allow a forehead support to assume multiple positions, to compensate for replacement cushions that may have a different profile, shape or size. The cushion is structured to compensate for variations in strap tension, treatment pressure and/or movement of the patient. Headgear may be provided with a strap assembly in which one or more straps is provided with selectively adjustable elasticity or extensibility that may be automatically changed in dependence of treatment pressure and/or treatment type.

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