Foam-based interfacing structure

  • US 10,265,489 B2
  • Filed: 10/27/2014
  • Issued: 04/23/2019
  • Est. Priority Date: 09/12/2008
  • Status: Active Grant
First Claim
Patent Images

1. A mask to provide a supply of pressurized air to the entrance of the airways of a patient, comprising:

  • a frame; and

    an interfacing structure including an attachment portion having a supporting surface, and a cushioning component including a base side joined to the supporting surface, the cushioning component being formed at least in part from foam which is configured to directly engage and form a seal with a region of the patient'"'"'s face,wherein the attachment portion is configured to directly connect to the frame, the attachment portion being arranged to support the foam of the cushioning component and connect the cushioning component to the frame such that the cushioning component is spaced-apart from the frame,wherein the attachment portion consists of a material that has different material properties from a material of the cushioning component,wherein the cushioning component includes;

    an inner side facing the center of the mask,an outer side facing away from the center of the mask; and

    the base side which is arranged to face the frame and/or the supporting surface of the attachment portion, andwherein the mask is arranged to promote a rolling-in effect of the foam of the cushioning component in at least one selected region of the cushioning component by way of at least one of the following;

    the base side of the cushioning component having a base surface angled inwardly towards the center of the mask, the angle being arranged to vary along a circumference of the at least one selected region of the cushioning component;

    an inner edge of the supporting surface of the attachment portion being offset outwardly from an inner edge of the base side of the cushioning component, leaving an inner portion of the cushioning component unsupported, with the offset varying along the at least one selected region of the cushioning component, andin a cross-sectional view, a length of the outer side of the cushioning component being greater than a length of the inner side of the cushioning component.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×