MCAULEY, ALASTAIR EDWIN,OLSEN, GREGORY JAMES,STEPHENSON, MATTHEW ROGER
申请号:
CA2747433
公开号:
CA2747433C
申请日:
2009.12.16
申请国别(地区):
CA
年份:
2017
代理人:
摘要:
A sealing interface includes an inner cushion and an outer sheath. The outersheath substantially seals against thefacial contours of the user. The inner cushion and the outer sheath each havea nasal bridge region, left and right cheek regionsand either one of an upper lip region or a chin region. In use these regionsare aligned with the corresponding nasal bridge region,left and right cheek regions and either the upper lip region or the chinregion of a user. The inner cushion includes a hinged region.The hinged region is adapted to flex substantially independently of the innercushion cheek regions.