RAPOPORT, DAVID M.,KURIGER, DONALD ROY,ARROWSMITH, MARK JOHN
申请号：
CA2819647
公开号：
CA2819647A1
申请日:
2011.12.02
申请国别(地区):
CA
年份:
2012
代理人:
摘要：
A system, apparatus and methods are provided for supplying gases to a user. The supply includes a sub-therapeutic mode and a pressure support mode for delivering therapy to a user. A flow diversion device or valve switches from a first mode corresponding with the sub-therapeutic mode of the system to a second mode corresponding with the pressure support mode of the system. In the first mode, the valve opens a larger flow path between the interior of the user interface and ambient air than in the second mode.
