HEADGEAR FOR MASKS

摘要

A headgear for use with a mask includes a first strap being configured to engage a back of a patient's head and extend on either side of the patient's parietal bone behind the patient's ears and assume, in use, a substantially circular or oval shape. At least a portion of the first strap is substantially inextensible. The headgear also includes at least one second strap configured to removably connect the first strap to the mask. The second strap may be more extensible than the first strap. At least a portion of the first strap is self-supporting such that the headgear maintains a three dimensional shape when not in use. The substantially inextensible portion of the first strap is constructed to resiliently return to a predetermined shape when not in use. The arcuate region includes a first portion that may be arranged to align substantially parallel with a top of the patient's head and a second portion being arranged to align substantially to a rear surface of the patient's head.

主权项

1. A respiratory mask assembly for treatment of sleep disordered breathing, comprising:
a mask frame; a cushion provided to the mask frame; and a headgear system having a plurality of straps including at least one strap constructed from a laminate having at least a first fabric layer and a second fabric layer, said first fabric layer being constructed and arranged to be located on a patient-contacting side in use, and said second fabric layer being constructed and arranged to be located on a non patient-contacting side in use, and further wherein said first fabric layer and said second fabric layer are joined at a joint configured to be positioned away from the patient's face when in use, and wherein said at least one strap has a first rounded lateral edge when viewed in cross-section, and wherein the joint is positioned at approximately a center or middle of the first rounded lateral edge when viewed in cross section.