Mask system

  • US 10,314,997 B2
  • Filed: 07/20/2016
  • Issued: 06/11/2019
  • Est. Priority Date: 11/20/2009
  • Status: Active Grant
First Claim
Patent Images

1. A mask system for providing respiratory therapy to the airways of a patient, the mask system comprising:

  • a frame including a pair of upper headgear connectors;

    a pair of lower headgear connectors, each of said pair of lower headgear connectors configured to connect to the frame;

    a sealing arrangement structured to interface with the frame, the sealing arrangement adapted to form a seal with a patient'"'"'s nose and/or mouth,wherein the sealing arrangement forms a breathing chamber pressurizable to a therapeutic pressure, the sealing arrangement including a circular inlet opening structured to receive a flow of air at the therapeutic pressure for breathing by the patient;

    an elbow adapted to be connected to an air delivery tube to deliver the flow of air at the therapeutic pressure to the breathing chamber; and

    headgear to maintain the mask system in position on a patient'"'"'s head,the headgear including a rear strap, a pair of upper side straps adapted to be routed over the patient'"'"'s ears, and a pair of lower side straps adapted to be routed under the patient'"'"'s ears, wherein each of the pair of upper side straps is adapted to connect to a respective one of the pair of upper headgear connectors of the frame and each of the pair of lower side straps is adapted to connect to a respective one of the pair of lower headgear connectors,wherein the sealing arrangement comprises a face-contacting side and a non face-contacting side,wherein the non face-contacting side of the sealing arrangement comprises a front wall having the circular inlet opening adapted to communicate with the elbow,wherein the front wall includes an inside surface arranged to be at said therapeutic pressure in use and an outside surface arranged to be at ambient pressure in use, and the frame includes a wall arranged along the outside surface of the front wall so that the wall is outside the breathing chamber,wherein the face-contacting side of the sealing arrangement includes a sealing flap,wherein the sealing arrangement comprises a co-molded construction in which the face-contacting side and the non face-contacting side comprise separately formed and attached components,wherein the sealing flap in a nasal bridge region of the sealing arrangement includes a dip-shape or valley when viewed from a top of the sealing arrangement, the dip-shape or valley being adapted to be complementary to a shape of a nasal bridge of the patient,wherein the sealing arrangement includes a side-of-nose region, wherein the sealing flap is thinner in the nasal bridge region than in the side-of-nose region, andwherein the sealing arrangement includes a corner region, wherein the sealing arrangement includes an intermediate region that is intermediate of the side-of-nose region and the corner region, wherein said intermediate region of the sealing arrangement is less thick or less stiff than the side-of-nose region and the corner region.

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