Mask
First Claim
Patent Images
1. A mask comprising:
- a mask body for connection with a supply of breathable gas; and
a compliant patient interface defining at least a portion of a breathing chamber, said interface includinga frame, said frame being of resilient material and having a first membrane, the first membrane including a first molded rim disposed within the breathing chamber and extending along at least a portion of an inner perimeter of the frame, said frame having a front portion with an edge structured to be coupled to the mask body; and
a second membrane of resilient material, said second membrane having a second molded rim, said second membrane rim spaced an open distance from said first membrane rim along an entire length of the second membrane when the mask is not in use, a portion of said second membrane rim forming a face contacting seal, wherein the substantially full perimeter of the second molded rim is provided in covering yet spaced relation to the first molded rim,wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, andwherein the first and second membranes are formed as a one-piece unit.
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Accused Products
Abstract
A mask for use with the administration of CPAP therapy includes a mask body for connection with a supply of breathable gas pressurized above ambient; and a compliant patient contacting element including a multilayered cushioning interface. The interface has an interior layer and an exterior layer provided in spaced relation to the interior layer when the mask is not in use. The exterior layer is elastically and resiliently movable towards and away the interior layer in use. Only the exterior layer forms a contacting seal with the patient in use.
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Citations
30 Claims
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1. A mask comprising:
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a mask body for connection with a supply of breathable gas; and a compliant patient interface defining at least a portion of a breathing chamber, said interface including a frame, said frame being of resilient material and having a first membrane, the first membrane including a first molded rim disposed within the breathing chamber and extending along at least a portion of an inner perimeter of the frame, said frame having a front portion with an edge structured to be coupled to the mask body; and a second membrane of resilient material, said second membrane having a second molded rim, said second membrane rim spaced an open distance from said first membrane rim along an entire length of the second membrane when the mask is not in use, a portion of said second membrane rim forming a face contacting seal, wherein the substantially full perimeter of the second molded rim is provided in covering yet spaced relation to the first molded rim, wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, and wherein the first and second membranes are formed as a one-piece unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mask comprising:
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a mask body for connection with a supply of breathable gas; and a compliant interface defining at least a portion of a breathing chamber, said interface having a front portion with an edge structured to be coupled to the mask body, said interface including a first membrane made of resilient material, the first membrane including a first molded layer disposed within the breathing chamber; and a second membrane of resilient material, said second membrane having a second molded layer, said second molded layer spaced an open distance from said first molded layer along an entire length of the second molded layer when the mask is not in use, a portion of said second membrane layer forming a face contacting seal, wherein the substantially full perimeter of the second molded layer is provided in covering yet spaced relation to the first molded layer, wherein along at least a portion of the perimeter of the second membrane, a surface of the second membrane is deformable from said spaced distance to abut against and contact a surface of the first membrane in dependence at least in part on a deformation force applied to the second membrane, and wherein the first and second membranes are formed as a one-piece unit. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A mask for use with the administration of CPAP therapy, comprising:
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a mask body for connection with a supply of breathable gas pressurized above ambient; and a compliant patient contacting element including a multilayered cushioning interface, said interface comprising an interior layer and an exterior layer having an entire length provided in spaced relation to the interior layer when the mask is not in use, said exterior layer being elastically and resiliently movable towards and away the interior layer in use, only said exterior layer forming a contacting seal with the patient in use, wherein along at least a portion of the perimeter of the exterior layer, a surface of the exterior layer is deformable from said spaced relation to abut against and contact against a surface of the interior layer in dependence at least in part on a deformation force applied to the exterior layer, and wherein the interior and exterior layers are formed as a one piece unit. - View Dependent Claims (27, 28, 29, 30)
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Specification