Patient interface and aspects thereof
First Claim
Patent Images
1. A patient interface comprising:
- a mask assembly comprising a seal and a frame;
the seal comprising a pair of protruding nostril locators, each nostril locator including an outlet aperture configured to seal against at least a nostril of a user, the seal also comprising an oval air supply aperture with a larger dimension of the oval air supply aperture extending in a lateral direction, and a rigid loop member extending around the oval air supply aperture and at least first and second rigid barbs protruding from the rigid loop member at locations adjacent to the oval air supply aperture;
the frame comprising a distal side comprising a connector connected to a flexible tube, the flexible tube comprising a supply connector located at a distal end of the flexible tube, the supply connector comprising a swivel,the frame further comprising first and second lateral sides and first and second arms extending from the first and second lateral sides, respectively, the frame also comprising first and second recesses clipped into engagement with the first and second rigid barbs holding the seal into sealing engagement with a proximal side of the frame;
a headstrap comprising a knitted tubular material, a first headstrap end portion and a second headstrap end portion, the first and second headstrap end portions being removably engageable with the first and second arms; and
an oval arrangement of a plurality of bias flow holes disposed on the distal side of the frame, and a gas inlet disposed in a center of the oval arrangement of the plurality of bias flow holes.
1 Assignment
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Accused Products
Abstract
A patient interface has a single loop headstrap and a mask for covering at least the nostrils of the user. The single loop headstrap extends from the mask at either end. A short length of supple conduit is coupled to the mask by a swivel or ball joint to allow rotation of the conduit relative to the mask through different angles and orientations.
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Citations
19 Claims
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1. A patient interface comprising:
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a mask assembly comprising a seal and a frame; the seal comprising a pair of protruding nostril locators, each nostril locator including an outlet aperture configured to seal against at least a nostril of a user, the seal also comprising an oval air supply aperture with a larger dimension of the oval air supply aperture extending in a lateral direction, and a rigid loop member extending around the oval air supply aperture and at least first and second rigid barbs protruding from the rigid loop member at locations adjacent to the oval air supply aperture; the frame comprising a distal side comprising a connector connected to a flexible tube, the flexible tube comprising a supply connector located at a distal end of the flexible tube, the supply connector comprising a swivel, the frame further comprising first and second lateral sides and first and second arms extending from the first and second lateral sides, respectively, the frame also comprising first and second recesses clipped into engagement with the first and second rigid barbs holding the seal into sealing engagement with a proximal side of the frame; a headstrap comprising a knitted tubular material, a first headstrap end portion and a second headstrap end portion, the first and second headstrap end portions being removably engageable with the first and second arms; and an oval arrangement of a plurality of bias flow holes disposed on the distal side of the frame, and a gas inlet disposed in a center of the oval arrangement of the plurality of bias flow holes. - View Dependent Claims (2, 3)
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4. A patient interface comprising:
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a mask assembly comprising a seal and a frame; the seal comprising a pair of protruding nostril locators protruding from the seal, each nostril locator including an outlet aperture configured to seal against at least a nostril of the user, the seal also including an air supply aperture; the frame comprising a distal side comprising a connector connected to a flexible supply tube and a gas outlet clipped to the seal; a headstrap comprising a knitted, hollow elongated tubular material with a first end and a second end, the first and second ends connected to the frame; and a plurality of bias flow holes disposed in an oval area on the distal side of the frame with a larger dimension of the oval area extending in a lateral direction, the connector disposed in a center of the oval area. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A patient interface comprising:
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a mask assembly comprising a seal and a frame; the seal comprising a pair of protruding nostril locators, each nostril locator including an outlet aperture configured to seal against at least a nostril of the user, the seal also including an air supply aperture and at least one rigid barb; the frame comprising a distal side comprising a gas inlet for connection with a gas supply conduit and a gas outlet clipped to the at least one rigid barb; a headstrap comprising a knitted, tubular material connected to the frame; and an oval arrangement of a plurality of bias flow holes disposed on the distal side of the frame, the gas inlet disposed in a center of the oval arrangement of the plurality of bias flow holes. - View Dependent Claims (16, 17, 18, 19)
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Specification