Nasal pillows for a patient interface
First Claim
1. A nasal pillow section for use as part of an apparatus for providing a stream of gases to a user, said nasal pillow section in use located in front of an upper lip and below nostrils of said user, said nasal pillow section comprising:
- a pillow gasket comprising a manifold having a gases aperture at a distal end that receives a stream of gases in use;
nasal pillows having lower ends fluidically connected to a proximal end of said manifold of said pillow gasket, the nasal pillows being adapted to substantially seal against said nostrils of said user in use so that substantially a whole of said stream of gases passes into said nasal pillows from said pillow gasket and is delivered to said user,a lower inner surface of said manifold having a height direction extending from said gases aperture toward said nasal pillows, the lower inner surface comprising a first concave portion curving inwardly along the height direction, the first concave portion extending from an area at the lower ends of the nasal pillows and to a distal end of the pillow gasket; and
an upper surface of said manifold, on an opposite side from the lower inner surface, the upper surface having a height direction extending from said gases aperture toward said nasal pillows, the upper surface comprising a second concave portion curving inwardly along the height direction, the second concave portion extending from an area at the lower ends of the nasal pillows and to a distal end of the pillow gasket.
1 Assignment
0 Petitions
Accused Products
Abstract
A nasal pillow section for use as part of an apparatus for providing a stream of gases to a user, the pillow section in use located in front of the upper lip and below the nostrils of a user, the pillow section comprising a pillow gasket having a gases aperture which receives a stream of gases in use, and nasal pillows fluidically connected to the pillow gasket which are adapted to substantially seal against the nostrils of a user in use, so that substantially the whole of the stream of gases entering the gasket through the aperture passes into the nasal pillows from the pillow gasket and is delivered to the user, the lower inner surface of the pillow gasket shaped so that in use contact between the upper lip of a user and the pillow gasket is minimised.
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Citations
26 Claims
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1. A nasal pillow section for use as part of an apparatus for providing a stream of gases to a user, said nasal pillow section in use located in front of an upper lip and below nostrils of said user, said nasal pillow section comprising:
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a pillow gasket comprising a manifold having a gases aperture at a distal end that receives a stream of gases in use; nasal pillows having lower ends fluidically connected to a proximal end of said manifold of said pillow gasket, the nasal pillows being adapted to substantially seal against said nostrils of said user in use so that substantially a whole of said stream of gases passes into said nasal pillows from said pillow gasket and is delivered to said user, a lower inner surface of said manifold having a height direction extending from said gases aperture toward said nasal pillows, the lower inner surface comprising a first concave portion curving inwardly along the height direction, the first concave portion extending from an area at the lower ends of the nasal pillows and to a distal end of the pillow gasket; and an upper surface of said manifold, on an opposite side from the lower inner surface, the upper surface having a height direction extending from said gases aperture toward said nasal pillows, the upper surface comprising a second concave portion curving inwardly along the height direction, the second concave portion extending from an area at the lower ends of the nasal pillows and to a distal end of the pillow gasket. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An interface for use as part of an apparatus for providing a stream of gases to a user, said interface comprising:
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a manifold section having a distal end with a gases supply aperture that in use receives a stream of gases, said manifold section adapted for connection to a headgear assembly so that in use said interface is held in position on a face of said user, a nasal pillow section having a pillow manifold section with distal end connected to the manifold section and nasal pillows having lower ends connected to a proximal end of the pillow manifold section, said pillow manifold section fluidically connected to said manifold section so that said stream of gases passes through said nasal pillow section in use, said nasal pillows adapted to substantially seal against nostrils of said user in use so that substantially all of said stream of gases is delivered to said user, said nasal pillow section in use located in front of an upper lip and below nostrils of said user, a lower inner surface of said pillow manifold section being directly in front of said upper lip in use, said lower inner surface of said pillow manifold section comprises a first concave portion extending along said lower inner surface of said pillow manifold section, in a direction from said manifold section toward the nasal pillows, and extending from an area at the lower ends of the nasal pillows and to the distal end of the pillow manifold section; and an upper surface of said pillow manifold section, on an opposite side from the lower inner surface, comprising a second concave portion extending along said upper surface of said pillow manifold section, in a direction from said manifold section toward the nasal pillows, and extending from an area at the lower ends of the nasal pillows and to the distal end of the pillow manifold section. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification