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US 11,633,564 B2Granted
Cushion to frame assembly mechanism
AssigneeResMed Pty Ltd
InventorsErrol Savio Alex D'Souza, Aaron Samuel Davidson, Robin Garth Hitchcock
Life of this patent
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Abstract
A full-face mask assembly includes a frame and a cushion provided to the frame. The cushion is adapted to form a seal around the patient's nose and mouth. A flexible lip is provided to an interior wall of the cushion. The flexible lip is adapted to engage the frame to provide a seal in use.
Claims30
A mask assembly for treatment of sleep disorder breathing by delivering a flow of pressurized gas to a patient, the mask assembly comprising:
- a cushion/frame sub-assembly including:
- a cushion frame comprising a cushion frame material, the cushion frame having a cushion frame wall having an opening that extends along a cushion frame longitudinal axis;
- and
- a cushion connected to the cushion frame, the cushion being configured to form a seal with the patient and including a cushion material that is more flexible than the cushion frame material;
- an outer frame snap-fit to the cushion/frame sub-assembly, the outer frame including:
- an outer frame wall having an opening that extends along an outer frame longitudinal axis;
- at least a pair of first headgear attachment points;
- and
- a connection adjacent the opening that engages an elbow;
- headgear including at least a pair of first straps releasably attachable or clipped to the at least said pair of first headgear attachment points;
- and
- an annular elbow connection seal,
- wherein the outer frame is configured to be removably interlocked with the cushion/frame sub-assembly by aligning the cushion frame longitudinal axis with the outer frame longitudinal axis, and moving the cushion/frame sub-assembly and the outer frame towards one another until they reach an interlocked position in which the outer frame and the cushion frame are at least partially nested relative to one another.
10 more elements
A patient interface for treatment of sleep disorder breathing by delivering a flow of pressurized gas to a patient, the patient interface comprising:
- a cushion/frame sub-assembly including:
- a cushion frame comprising a cushion frame material, the cushion frame having a cushion frame wall having an opening that extends along a cushion frame longitudinal axis;
- and
- a cushion connected to the cushion frame, the cushion being adapted to form a seal with a patient's nose or nose and mouth and including a cushion material that is more flexible than the cushion frame material;
- an outer frame connected to the cushion/frame sub-assembly and configured to maintain the cushion/frame sub-assembly in an operative position in use, the outer frame including:
- an outer frame wall defining an opening that extends along an outer frame longitudinal axis;
- and
- at least first and second headgear attachment points;
- and
- headgear including one or more straps releasably attachable to the first and second headgear attachment points of the outer frame,
- wherein the outer frame is configured to be removably interlocked with the cushion/frame sub-assembly by aligning the cushion frame longitudinal axis with the outer frame longitudinal axis, and moving the cushion/frame sub-assembly and the outer frame towards one another until they reach an interlocked position in which the outer frame wall and the cushion frame wall are at least partially nested relative to one another.
8 more elements
A mask assembly for treatment of sleep disorder breathing by delivering a flow of pressurized gas to a patient, the mask assembly comprising:
- a cushion/frame sub-assembly including:
- a cushion frame comprising a cushion frame material, the cushion frame having a cushion frame annular wall defining a circular opening that extends along a cushion frame longitudinal axis;
- and
- a cushion connected to the cushion frame, the cushion being adapted to form a seal with a patient's nose or nose and mouth and including a cushion material that is more flexible than the cushion frame material;
- a support frame to at least partly constrain the cushion/frame sub-assembly, the support frame including:
- a support frame annular wall defining a circular opening that extends along a support frame longitudinal axis:
- at least first and second headgear attachment points;
- and
- an annular portion adapted to engage an elbow or inlet conduit;
- and
- headgear including at least first and second straps with clips, the clips being releasably attachable to the first and second headgear attachment points of the support frame,
- wherein the support frame is configured to be removably interlocked with the cushion/frame sub-assembly by aligning the cushion frame longitudinal axis with the support frame longitudinal axis, and moving the cushion/frame sub-assembly and the support frame towards one another until they reach an interlocked position in which the at least a portion of the support frame annular wall and at least a portion of the cushion frame annular wall are positioned in a common plane.
9 more elements
Dependencies are inferred from the claim text.