Cushion for patient interface
First Claim
1. A series of full-face cushions for patient interfaces that deliver breathable gas to patients, each of the full-face cushions including a nasal bridge region, cheek regions and a chin region, each of the full-face cushions defining, at least in part, a breathing cavity, the series comprising:
- a first full-face cushion, the first full-face cushion comprising a first membrane including a first nasal bridge region, first cheek regions and a first chin region forming a first sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the first membrane having an inner edge that defines a first aperture to receive the patient'"'"'s nose and mouth, the first aperture including a lower portion having a first mouth width;
a second full-face cushion, the second full-face cushion comprising a second membrane including a second nasal bridge region, second cheek regions and a second chin region forming a second sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the second membrane having an inner edge that defines a second aperture to receive the patient'"'"'s nose and mouth, the second aperture including a lower portion having a second mouth width;
a third full-face cushion, the third full-face cushion comprising a third membrane including a third nasal bridge region, third cheek regions and a third chin region forming a third sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the third membrane having an inner edge that defines a third aperture to receive the patient'"'"'s nose and mouth, the third aperture including a lower portion having a third mouth width; and
a fourth full-face cushion, the fourth full-face cushion comprising a fourth membrane including a fourth nasal bridge region, fourth cheek regions and a fourth chin region forming a fourth sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the fourth membrane having an inner edge that defines a fourth aperture to receive the patient'"'"'s nose and mouth, the fourth aperture including a lower portion having a fourth mouth width,wherein, in a front view, each of the first, second, third and fourth apertures has a different height, and the first, second, third and fourth mouth widths are constant the same.
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0 Petitions
Accused Products
Abstract
A cushion for a patient interface that delivers breathable gas to a patient includes a base wall structured to be connected to a frame, an underlying support cushion extending away from the base wall towards the patient'"'"'s face in use, and a membrane provided to substantially cover at least a portion of the underlying cushion. The membrane is adapted to form a continuous seal on the patient'"'"'s face. The underlying cushion has a spring-like connection with the base wall. The underlying cushion and/or base wall define a spring constant that varies along a length of the seal.
611 Citations
30 Claims
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1. A series of full-face cushions for patient interfaces that deliver breathable gas to patients, each of the full-face cushions including a nasal bridge region, cheek regions and a chin region, each of the full-face cushions defining, at least in part, a breathing cavity, the series comprising:
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a first full-face cushion, the first full-face cushion comprising a first membrane including a first nasal bridge region, first cheek regions and a first chin region forming a first sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the first membrane having an inner edge that defines a first aperture to receive the patient'"'"'s nose and mouth, the first aperture including a lower portion having a first mouth width; a second full-face cushion, the second full-face cushion comprising a second membrane including a second nasal bridge region, second cheek regions and a second chin region forming a second sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the second membrane having an inner edge that defines a second aperture to receive the patient'"'"'s nose and mouth, the second aperture including a lower portion having a second mouth width; a third full-face cushion, the third full-face cushion comprising a third membrane including a third nasal bridge region, third cheek regions and a third chin region forming a third sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the third membrane having an inner edge that defines a third aperture to receive the patient'"'"'s nose and mouth, the third aperture including a lower portion having a third mouth width; and a fourth full-face cushion, the fourth full-face cushion comprising a fourth membrane including a fourth nasal bridge region, fourth cheek regions and a fourth chin region forming a fourth sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the fourth membrane having an inner edge that defines a fourth aperture to receive the patient'"'"'s nose and mouth, the fourth aperture including a lower portion having a fourth mouth width, wherein, in a front view, each of the first, second, third and fourth apertures has a different height, and the first, second, third and fourth mouth widths are constant the same. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A series of full-face cushions for patient interfaces that deliver breathable gas to patients, each of the full-face cushions including a nasal bridge region, cheek regions and a chin region, each of the full-face cushions defining, at least in part, a breathing cavity, the series comprising:
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a first full-face cushion, the first full-face cushion comprising a first membrane including a first nasal bridge region, first cheek regions and a first chin region forming a first sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the first membrane having an inner edge that defines a first aperture to receive the patient'"'"'s nose and mouth, the first aperture including a lower portion having a first mouth width; and a second full-face cushion, the second full-face cushion comprising a second membrane including a second nasal bridge region, second cheek regions and a second chin region forming a second sealing structure to form a seal on a nasal bridge region, cheek regions, and a chin region of the patient'"'"'s face, the second membrane having an inner edge that defines a second aperture to receive the patient'"'"'s nose and mouth, the second aperture including a lower portion having a second mouth width, wherein the first full-face cushion is a different size than the second full-face cushion, and the first mouth width is substantially the same as the second mouth width, wherein each of the full-face cushions in the series includes a support structure, each support structure including; a wall; and an underlying cushion connected to the wall, wherein each underlying cushion, in a cross-sectional view, extends from a respective wall and toward a respective breathing cavity to provide support to a respective one of the membranes, each underlying cushion includes cheek regions extending adjacent a perimeter of a respective one of the apertures such that each respective full-face cushion has at least a double-walled construction formed by the underlying cushion and the respective membrane in the cheek regions such that each underlying cushion is positioned to restrain movement of the respective membrane, and each respective full-face cushion has only a single-walled construction formed by the respective membrane in a majority of the chin region so as to allow each respective membrane to readily flex in said majority of the chin region. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification