Cushion for a respiratory mask assembly
First Claim
1. A respiratory mask assembly for treatment of sleep disordered breathing, the respiratory mask assembly comprising:
- a frame;
a cushion which at least in part defines a cavity,wherein the cushion provides an aperture capable of receiving at least a patient'"'"'s nose, andwherein the cushion includes;
a face contacting portion,a non-face contacting portion, anda gusset portion between the face contacting portion and the non-face contacting portion, the gusset portion configured to provide flexibility and increased travel at a nasal bridge region of the cushion,wherein the gusset portion protrudes laterally outwardly with respect to the non-face contacting portion,wherein the gusset portion includes an outer wall configured to fold over and outside of an inner wall of the gusset portion when the face contacting and non-face contacting portions are compressed towards one another, andwherein the gusset portion includes a tip section that interconnects the inner wall and the outer wall, the tip section arranged to roll or curl under and inside the outer wall when the face contacting and non-face contacting portions are compressed towards one another; and
an air delivery connection supported by the frame and adapted to connect an air delivery conduit to supply air to the cavity.
4 Assignments
0 Petitions
Accused Products
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.
410 Citations
19 Claims
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1. A respiratory mask assembly for treatment of sleep disordered breathing, the respiratory mask assembly comprising:
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a frame; a cushion which at least in part defines a cavity, wherein the cushion provides an aperture capable of receiving at least a patient'"'"'s nose, and wherein the cushion includes; a face contacting portion, a non-face contacting portion, and a gusset portion between the face contacting portion and the non-face contacting portion, the gusset portion configured to provide flexibility and increased travel at a nasal bridge region of the cushion, wherein the gusset portion protrudes laterally outwardly with respect to the non-face contacting portion, wherein the gusset portion includes an outer wall configured to fold over and outside of an inner wall of the gusset portion when the face contacting and non-face contacting portions are compressed towards one another, and wherein the gusset portion includes a tip section that interconnects the inner wall and the outer wall, the tip section arranged to roll or curl under and inside the outer wall when the face contacting and non-face contacting portions are compressed towards one another; and an air delivery connection supported by the frame and adapted to connect an air delivery conduit to supply air to the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification