Mask with removable headgear connector

  • US 9,937,315 B2
  • Filed: 01/12/2015
  • Issued: 04/10/2018
  • Est. Priority Date: 01/30/2007
  • Status: Active Grant
First Claim
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1. A mask system for delivering a supply of air generated by a flow generator at a positive pressure in a therapeutic range to a patient'"'"'s airways to treat sleep disordered breathing, the mask system comprising:

  • a mask frame constructed of a substantially rigid, non-malleable plastic material, the mask frame having a bore and a curved interfacing structure, the bore having a cylindrical shape, the curved interfacing structure projecting from the bore in a radial direction, and said mask frame having no built-in or integral headgear attachment points;

    a cushion provided to the mask frame and adapted to seal with the patient'"'"'s face in use;

    headgear including a pair of upper side straps configured to extend above the patient'"'"'s ears in use, a pair of lower side straps configured to extend below the patient'"'"'s ears in use, a rear portion configured to cup the occiput of the patient'"'"'s head in use, and a pair of lower headgear clips adapted to receive respective ones of the pair of lower side straps;

    an elbow assembly adapted to be connected to an air delivery tube to deliver the supply of air to the patient'"'"'s airways; and

    a headgear connector adapted to engage the curved interfacing structure with a snap-fit, the headgear connector having a circular opening, said headgear connector including a pair of lower headgear clip anchors adapted to be engaged with respective ones of the pair of lower headgear clips to attach respective ones of the pair of lower side straps, said headgear connector including a fixed forehead support, said fixed forehead support including a pair of openings adapted to attach to respective ones of the pair of upper side straps,wherein the mask frame and the headgear connector are constructed to resist movement between the mask frame and the headgear connector when said mask frame and said headgear connector are attached.

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