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    • 2. 发明申请
    • SYSTEMS AND METHODS FOR PROTECTING COMPONENTS OF A BREATHING ASSISTANCE SYSTEM
    • 用于保护呼吸辅助系统组件的系统和方法
    • WO2010138268A1
    • 2010-12-02
    • PCT/US2010/032896
    • 2010-04-29
    • NELLCOR PURITAN BENNETT LLCNICOLAZZI, PascalPOIROT, BertrandGENTNER, JulienPERINE, Philippe
    • NICOLAZZI, PascalPOIROT, BertrandGENTNER, JulienPERINE, Philippe
    • A61M16/20
    • A61M16/208A61M16/1075A61M16/202
    • A breathing assistance system includes a gas delivery system that generates a gas flow, a fluid source (e.g., a humidifier system or supplemental gas supply) located downstream from the gas delivery system that humidifies the gas flow generated by the gas delivery system, a gas flow conduit system for communicating the gas flow from the gas delivery system, and a flow regulation device. The flow regulation device is physically moveable between (a) an operational position that allows the gas flow generated by the gas delivery system to flow downstream past the flow regulation device via the gas flow conduit system, and (b) a protection position that prevents gasses and liquids flowing upstream through the gas flow conduit system from reaching the gas delivery system, and instead directs such gasses and liquids through an exhaust opening in the gas flow conduit system. The flow regulation device automatically moves between the operational position and the protection position based at least on a gas pressure upstream of the flow regulation device.
    • 呼吸辅助系统包括产生气流的气体输送系统,位于气体输送系统下游的流体源(例如,加湿器系统或补充气体供应源),其加湿由气体输送系统产生的气体流量,气体 用于传送来自气体输送系统的气流的流动管道系统,以及流量调节装置。 流量调节装置可以在(a)允许由气体输送系统产生的气流在气流管道系统的下游流过流量调节装置的操作位置之间物理地移动,以及(b)防止气体的保护位置 并且通过气体流动管道系统的上游流动的液体到达气体输送系统,而是将这种气体和液体引导通过气体流动管道系统中的排气口。 流量调节装置至少基于流量调节装置上游的气体压力自动地在操作位置和保护位置之间移动。