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Nasal pillows for a patient interface

  • US 9,901,700 B2
  • Filed: 10/09/2009
  • Issued: 02/27/2018
  • Est. Priority Date: 10/10/2008
  • Status: Active Grant
First Claim
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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:

  • 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.

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