Milind Raje;Memduh Guney;Joanne Drew;Robert H. Frater
发明人:
Milind Raje,Joanne Drew,Robert H. Frater,Memduh Guney
申请号：
US11987616
公开号：
US08230855B2
申请日:
2007.12.03
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A respiratory mask assembly for use in the delivery of non-invasive positive airway pressure to a user. The assembly includes a rigid shell having a channel portion defined by an inner wall, an outer wall and a channel floor, a face-contacting cushion acting to space the shell away from the user's face and a sealing tab extending from the cushion to engage a portion of the shell to provide a continuous airtight seal between the cushion and the shell. A retaining ring within the mask assembly is configured to secure the cushion to the shell. The retaining ring has a first portion including at least one clip configured to pass through at least one slot portion such that an underside surface of the at least one clip engages a section of the shell when the retaining ring is positioned within the channel.
