Interface including a foam cushioning element

  • US 9,987,450 B2
  • Filed: 03/04/2009
  • Issued: 06/05/2018
  • Est. Priority Date: 03/04/2008
  • Status: Active Grant
First Claim
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1. A respiratory mask system comprising:

  • a mask frame;

    an interfacing structure comprising;

    a first layer including a foam interfacing portion adapted to directly contact a face of a patient to form a seal therewith in use; and

    a second layer adhered to the first layer at a connection region to form a one-piece structure therewith, the second layer including a connection portion constructed and arranged to be removably attachable to the mask frame,wherein, in a cross-sectional view, a width of said connection portion is less than a width of said foam interfacing portion at the connection region such that an exposed inner perimeter surface of the connection portion is offset from an inner perimeter surface of the foam interfacing portion to define an inner region of said foam interfacing portion that overhangs the connection portion such that the inner region of the foam interfacing portion is unsupported by the connection portion and forms a cantilever projection from the connection portion,wherein the inner region of the foam interfacing portion overhangs the connection portion a greater amount than any portion of the foam interfacing portion overhangs an outer perimeter surface of the connection portion, thereby causing the inner region of the foam interfacing portion to compress and conform to the patient'"'"'s face when pressed against the patient'"'"'s face in use, andwherein the connection portion is less rigid than the mask frame.

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