Cushion and cushion to frame assembly mechanism for patient interface
First Claim
Patent Images
1. A full-face cushion for a patient interface that delivers breathable gas to a patient, the cushion comprising different regions including nasal bridge, cheek and chin regions, the cushion being adapted to be connected to a frame, the full-face cushion comprising:
- a membrane including nasal bridge, cheek and chin regions to form a continuous seal against the patient'"'"'s face;
a support structure configured to connect the cushion to the frame and support the membrane, the support structure including;
a lower portion;
an upper portion extending, in at least one cross-sectional view, from the lower portion and laterally outwardly, with respect to the lower portion, the upper portion forming an angle with respect to the lower portion; and
an underlying cushion to provide support to the membrane, the underlying cushion extending from the upper portion,wherein the membrane extends from the upper portion and covers, in a front view, the underlying cushion,wherein an entirety of the upper portion extending between the lower portion and the membrane forms a substantially linear extension that extends laterally outwardly continuously from the lower portion to the membrane, andwherein the angle in the nasal bridge region is different than the angle in the cheek regions of the cushion to vary a spring characteristic of the support structure in the nasal bridge region and the cheek regions of the cushion.
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Accused Products
Abstract
A full-face cushion for a patient interface that delivers breathable gas to a patient includes a frame connector adapted to attach the cushion to a mask frame and an interface provided to the frame connector. The interface is constructed of foam and defines a cushion cavity. The interface includes a foam contact surface adapted to interface or contact with surfaces of the patient'"'"'s face in use.
655 Citations
17 Claims
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1. A full-face cushion for a patient interface that delivers breathable gas to a patient, the cushion comprising different regions including nasal bridge, cheek and chin regions, the cushion being adapted to be connected to a frame, the full-face cushion comprising:
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a membrane including nasal bridge, cheek and chin regions to form a continuous seal against the patient'"'"'s face; a support structure configured to connect the cushion to the frame and support the membrane, the support structure including; a lower portion; an upper portion extending, in at least one cross-sectional view, from the lower portion and laterally outwardly, with respect to the lower portion, the upper portion forming an angle with respect to the lower portion; and an underlying cushion to provide support to the membrane, the underlying cushion extending from the upper portion, wherein the membrane extends from the upper portion and covers, in a front view, the underlying cushion, wherein an entirety of the upper portion extending between the lower portion and the membrane forms a substantially linear extension that extends laterally outwardly continuously from the lower portion to the membrane, and wherein the angle in the nasal bridge region is different than the angle in the cheek regions of the cushion to vary a spring characteristic of the support structure in the nasal bridge region and the cheek regions of the cushion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A full-face cushion for a patient interface that delivers breathable gas to a patient, the cushion comprising different regions including nasal bridge, cheek and chin regions, the cushion being adapted to be connected to a frame, the full-face cushion comprising:
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a membrane including nasal bridge, cheek and chin regions to form a continuous seal against the patient'"'"'s face; a support structure configured to connect the cushion to the frame and support the membrane, the support structure including; a lower portion; an upper portion extending, in at least one cross-sectional view, laterally outwardly from the lower portion, the upper portion forming an angle with respect to the lower portion; and an underlying cushion to provide support to the membrane, the underlying cushion extending from the upper portion, wherein the membrane extends from the upper portion and covers at least part of the underlying cushion, wherein an entirety of the upper portion extending between the lower portion and the membrane forms a substantially linear extension that extends laterally outwardly continuously from the lower portion to the membrane, wherein a length of the upper portion varies in the different regions of the cushion to vary a stiffness of the cushion in the different regions. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification