Inextensible headgear and cpap or ventilator mask assembly with same

Abstract

A headgear for a respiratory mask of a ventilator or CPAP device is provided. The headgear includes a strap portion formed of a substantially inextensible material. The strap portion has formed on one end thereof a connecting structure configured to connect to a mask of the ventilator or CPAP device. One advantage is that the mask will not or at least will be less inclined to lift off the face as mask pressure is increased.

1 . A headgear for a respiratory mask, the headgear comprising:
 a plurality of strap portions, the plurality of strap portions as a unit being positionable in a first position in which the headgear is donned by a wearer and in a second position in which the headgear is not donned by the wearer,   the plurality of strap portions being configured such that, in the first position, upon tensioning, the plurality of straps conform to a shape of the wearer's head, and in the second position, the plurality of straps resist collapse and retain their shape in a configuration generally approximating the shape of the wearer's head.