×

Cushion for a respiratory mask assembly

  • US 7,958,893 B2
  • Filed: 03/18/2009
  • Issued: 06/14/2011
  • Est. Priority Date: 09/07/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. A respiratory mask assembly for delivering breathable gas to a patient, comprising:

  • a frame; and

    a cushion having a non-face contacting portion connected to the frame, a face-contacting portion structured to apply a contact force on the patient'"'"'s face, and an intermediate portion that interconnects the non-face contacting portion and the face-contacting portion,wherein the intermediate portion includes an elastic cuff portion that is at least partly determinative of a component of the contact force to be applied to the patient'"'"'s face through the face-contacting portion, the elastic cuff portion having a stiffness which is less than a stiffness of at least one of the face contacting portion and the non-face contacting portion.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×