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Patient interface systems

  • US 10,449,317 B2
  • Filed: 11/29/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
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1. A mask system for respiratory therapy that involves delivering pressurized air to airways of a patient, the mask system comprising:

  • a patient interface adapted to contemporaneously deliver the pressurized air to a mouth of the patient and a nose of the patient while the patient interface is positioned entirely below a nasal bridge of the patient, the patient interface forming a breathing chamber and including;

    a mouth cushion adapted to seal around the mouth of the patient and deliver the pressurized air from the breathing chamber formed by the patient interface to the mouth of the patient, when the mask system is worn by the patient;

    a nasal cushion adapted to seal around the nares of the patient and deliver the pressurized air from the breathing chamber formed by the patient interface to the nose of the patient through a nose aperture in the nasal cushion, when the mask system is worn by the patient, the nasal cushion having a dual wall construction comprising (i) a sealing wall arranged to contact a face of the patient, and (ii) a supporting wall, wherein an entire perimeter of the nose aperture is defined by an inner edge of the sealing wall; and

    a frame that connects to a non-face-contacting portion of the mouth cushion.

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