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Mask system

  • US 10,441,738 B2
  • Filed: 11/21/2018
  • Issued: 10/15/2019
  • Est. Priority Date: 09/30/2010
  • Status: Active Grant
First Claim
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1. A mask system for delivery of respiratory therapy to a patient, comprising:

  • a mask shaped to seal entirely below a nasal bridge of the patient and provide pressurized air to a nose of the patient and a mouth of the patient, the mask including;

    a mouth sealing portion that defines a mouth aperture through which the pressurized air is to be provided to the mouth of the patient;

    a nares sealing portion that defines a nasal aperture through which the pressurized air is to be provided to the nose of the patient, the nasal aperture spaced apart from the mouth aperture, the nares sealing portion including;

    (i) a first wall,(ii) a flexible membrane shaped to seal around nares of the patient through contact with sides of the nose of the patient when the mask is worn by the patient, the flexible membrane extending away from the first wall towards a free edge of the flexible membrane, the flexible membrane including;

    a flexible membrane nose tip engagement portion,a flexible membrane upper lip engagement portion,a first flexible membrane side portion that is between the flexible membrane nose tip engagement portion and the flexible membrane upper lip engagement portion, anda second flexible membrane side portion that is between the flexible membrane nose tip engagement portion and the flexible membrane upper lip engagement portion, the first flexible membrane side portion being on an opposite side of the nasal aperture from the second flexible membrane side portion,(iii) a first supporting thickened portion that is located behind the first flexible membrane side portion to provide support to the first flexible membrane side portion that is between the flexible membrane nose tip engagement portion and the flexible membrane upper lip engagement portion, the first supporting thickened portion extending away from the first wall towards a first free edge of the first supporting thickened portion, the first free edge of the first supporting thickened portion being separated from a free edge of the first flexible membrane side portion, wherein a thickness of the first supporting thickened portion is multiple times thicker than a thickness of the first flexible membrane side portion, and(iv) a second supporting thickened portion that is located behind the second flexible membrane side portion to provide support to the second flexible membrane side portion that is between the flexible membrane nose tip engagement portion and the flexible membrane upper lip engagement portion, the second supporting thickened portion extending away from the first wall towards a first free edge of the second supporting thickened portion, the first free edge of the second supporting thickened portion being separated from a free edge of the second flexible membrane side portion, wherein a thickness of the second supporting thickened portion is multiple times thicker than a thickness of the second flexible membrane side portion; and

    headgear connectors on opposing sides of the mask to connect with headgear that retains the mask in position on a head of the patient when the mask system is worn by the patient.

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