Veliss, Lee James,Cariola, Melanie,Wells, Alicia,Carroll, Fiona,Howard, Scott
申请号：
NZ73803409
公开号：
NZ738034A
申请日:
2009.09.03
申请国别(地区):
NZ
年份:
2019
代理人:
摘要：
A facial mask assembly for use in providing a supply of air at pressure to the entrance of the airways of a person, the mask assembly including a frame and a cushion (932) supported by the frame. The cushion is formed at least in part from foam, and has a circumference and a cross-section. At least a portion of the cross section of the cushion includes a base side defined by a base surface of the cushion, an outer side defined by an outer surface of the cushion and an inner side defined by an inner surface of the cushion, the outer side and inner side extending away from the base side and intercepting each other at an apex to define a generally triangular cross-section. The base surface is arranged to face the frame, the inner surface is orientated to face a centre of the mask, and the outer surface is orientated to face away from the centre of the mask. The mask assembly is arranged to promote a rolling-in effect at least in a selected region of the circumference of the cushion on application of force to the cushion in-use, the rolling-in effect causing a portion of the outer surface of the cushion to form a seal with the face of the patient.
