Headgear assembly for a respiratory mask assembly
AssigneeResMed Limited
InventorsAmal Shirley AMARASINGHE, Perry David 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 maintaining a respiratory mask assembly in position on a patient's face, the headgear assembly comprising:
- two side portions;
- and
- a rear portion positioned between the side portions and the rear portion being structured and arranged to engage a lower portion of the occipital bone of the patient's head to prevent upward movement of the headgear assembly in use,
- wherein each side portion comprises an upper side strap constructed and arranged to be located above the ear and eye of the patient in use, and a lower side strap constructed and arranged to be located below the ear and eye of the patient in use,
- wherein each said upper side strap and each said lower side strap are further constructed and arranged to be connectable to the respiratory mask assembly;
- wherein the headgear assembly is constructed from a flexible material;
- and
- wherein the rear portion of the headgear comprises a stiffening portion configured to maintain the position of each upper side strap and each lower side strap spaced from the patient's ears in use.
Dependencies are inferred from the claim text.