Respiratory mask and gas washout vent,申请号EP20050013502-传众专利搜索

Respiratory mask and gas washout vent

申请公布号：EP1582230(A3)

申请号：EP20050013502

申请日期：2001.11.22

申请公布日期：2005.10.12

申请人：

RESMED LIMITED

发明人：DREW, JOANNE;VIRR, ALEXANDER;CRUMBLIN, GEOFFREY

分类号：A61M16/06;A61M16/08;(IPC1-7):A61M16/06

主分类号：A61M16/06

摘要：A respiratory mask (10), particularly of the type used in CPAP treatment, has a gas washout vent (26,28). In one embodiment the vent (26,28) is made of a thin air-permeable membrane (28). Generally, the membrane (28) is thinner than about 0.5 mm. The membrane (28) can be made of a hydrophobic material such as polytetrafluoroethylene (PTFE). The membrane (28) can also be fabricated from expanded PTFE. In an alternative embodiment, the vent assembly includes a vent constructed from stainless steel. <IMAGE>