Patents Assigned to INTERNATIONAL HEALTH GROUP PTY LTD
  • Patent number: 11957841
    Abstract: A mask for the delivery of a medical gas under positive pressure. The engagement surface is generally circular in shape and is sufficiently rigid that operatively, when a suitable retention force is applied to the mask, an effective seal is produced at the interface of the engagement surface and the surrounding tissue primarily by deformation of the surrounding tissue.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: April 16, 2024
    Assignee: INTERNATIONAL HEALTH GROUP PTY LTD
    Inventors: Gavin Herman Ritz, Deborah Jane Ritz