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    • 4. 发明申请
    • GAS CONTROL APPARATUS
    • 气体控制装置
    • WO2004060459A1
    • 2004-07-22
    • PCT/GB2004/000001
    • 2004-01-02
    • UWS VENTURES LTDMASON, Rodney, StewartMOOZYCKINE, Alexei, UriahDINGLEY, John
    • MASON, Rodney, StewartMOOZYCKINE, Alexei, UriahDINGLEY, John
    • A61M16/10
    • F25J3/06A61M16/009A61M16/0093A61M16/0808A61M16/10A61M16/1015A61M16/22F25J3/0685F25J2205/20F25J2215/36Y02C20/10
    • A method of removing nitrogen from a flow of gas (such as exhaled breath) which contains an anaesthetic agent in an anaesthesia breathing circuit, which method includes : a) cooling the gas in a first cooling means to a temperature substantially below the freezing point of carbon dioxide, so as to condense carbon dioxide and water vapour present in the gas ; b) cooling the non-condensed gas from step (a) in a second cooling means to a temperature in a first temperature range which is substantially below the boiling point of an anaesthetic agent present in the gas but substantially above the boiling point of nitrogen, so as to provide a condensed material (which may be in liquid or solid form) comprising the anaesthetic agent ; c) venting non-condensed gas from step (b) ; and d) permitting the condensed material from step (b) to increase to above a second temperature which is substantially above the boiling point of the anaesthetic agent so as to permit the anaesthetic agent to become gaseous.
    • 一种从麻醉呼吸回路中含有麻醉剂的气体流(例如呼出气)中除去氮气的方法,该方法包括:a)将第一冷却装置中的气体冷却到基本上低于 二氧化碳,以冷凝存在于气体中的二氧化碳和水蒸汽; b)在第二冷却装置中将来自步骤(a)的非冷凝气体冷却至基本上低于存在于气体中但大体上高于氮气沸点的麻醉剂的沸点的第一温度范围内的温度, 以提供包含麻醉剂的冷凝材料(其可以是液体或固体形式); c)从步骤(b)排出非冷凝气体; 和d)允许来自步骤(b)的冷凝材料增加到高于麻醉剂沸点的第二温度,以允许麻醉剂变成气态。
    • 8. 发明申请
    • VENTILATOR APPARATUS
    • 通风装置
    • WO2002098497A1
    • 2002-12-12
    • PCT/GB2002/002365
    • 2002-05-21
    • DINGLEY, John
    • DINGLEY, John
    • A61M16/00
    • A61M16/0072F04B9/1235F04B9/125
    • A double acting drive piston (13) and cylinder arrangement (14) is connected to a pressurised driving gas feed arrangement and operatively drives a respiration gas pump (9). A valve system includes switching valve(s) (17) to switch delivery of the driving gas to the double acting drive piston (13) and cylinder arrangement (14). The gas pump (9) is typically a driven piston (10) and cylinder arrangement (11), the piston (10) of the respiration pump being operatively connected to the drive piston (13). The system is tuned for maximum efficiency of use of the pressurised driving gas.
    • 双作用驱动活塞(13)和气缸装置(14)连接到加压驱动气体供给装置并可操作地驱动呼吸气泵(9)。 阀系统包括切换阀(17)以将驱动气体的输送切换到双作用驱动活塞(13)和气缸装置(14)。 气泵(9)通常是从动活塞(10)和气缸装置(11),呼吸泵的活塞(10)可操作地连接到驱动活塞(13)。 该系统被调整以最大限度地利用加压驱动气体的效率。