Headgear assembly for a respiratory mask assembly
AssigneeResMed Limited
InventorsAmal S. Amarasinghe, Perry D. Lithgow, Memduh Guney
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Abstract
A respiratory mask assembly for delivering breathable gas to a patient includes a frame and a headgear assembly removably attachable to the frame. The headgear assembly includes a pair of side portions and a rear portion that interconnects the pair of side portions. The pair of side portions includes at least one strap. The rear portion has at least one strap constructed of at least two layers of material. One of the layers of material has a more rigid construction than the other of the layers of material to resist compression of the at least one strap of the rear portion in a first direction which resists movement of the at least one strap of the pair of side straps in the first direction.
Claims20
A headgear assembly for stabilizing and positioning a respiratory mask assembly on a patient's head, comprising:
- a pair of upper side straps and a pair of lower side straps;
- a rear portion including an upper strap, a lower strap, and an intermediate strap arrangement between the upper and lower straps of the rear portion;
- and
- a stiffener positioned on the rear portion,
- wherein the intermediate strap arrangement includes a pair of upper straps angled with respect to the upper strap of the rear portion, a pair of lower straps angled with respect to the lower strap of the rear portion, and a cross-bar strap that extends between the upper and lower straps of the intermediate strap arrangement,
- wherein the stiffener is generally C-shaped including a body that extends along the cross-bar strap and a pair of arm members that extend along respective lower straps of the intermediate strap arrangement, the body having a width that is greater than a width of the arm members.
Dependencies are inferred from the claim text.