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    • 8. 发明申请
    • MULTI LUMEN HEAT EXCHANGER
    • 多功能换热器
    • WO2010005537A2
    • 2010-01-14
    • PCT/US2009/003947
    • 2009-07-02
    • SMITHS MEDICAL ASD, INC.JOHNSON, MichaelHUGHES, Gregory
    • JOHNSON, MichaelHUGHES, Gregory
    • A61F7/12A61M5/44
    • F28F9/0253A61M5/44A61M2205/366F28D7/106
    • A heat exchanger has a multi-lumen tubing having one end connected to a supply fitting and another end connected to a return fitting. The tubing has a central lumen, a middle lumen that surrounds the central lumen and an outer lumen that surrounds the middle lumen. The supply fitting has an inlet, an outlet and a proximal port wherethrough an infusate is input to the heat exchanger. The supply fitting is configured such that its inlet is connected to the central lumen, its outlet connected to the outer lumen, and its proximal port connected to the middle lumen of the tubing. The return fitting is configured to establish a through passage between the central lumen and the outer lumen of the tubing so that a heating fluid fed through the supply fitting to the central lumen is returned to the supply fitting by way of the outer lumen. The return fitting further has a distal port configured to connect to the central lumen of the tubing, so that the infusate fed to the proximal port of the supply fitting may be output from the distal port of the return fitting, after passing through the central lumen of the tubing. As the infusate traverses along the heat exchanger, it is heated by the heating fluid that flows along the central lumen, and also by the rerouted heating fluid that flows along the outer lumen of the tubing. The heat exchanger is fluidly coupled to a heater by its inlet and outlet so that the temperature of the heating fluid for warming the infusate is maintained at a predetermined temperature.
    • 热交换器具有多管管,其一端连接到供应配件,另一端连接到回流配件。 管道具有中心腔,围绕中心腔的中间腔和围绕中腔的外腔。 供应配件具有入口,出口和近端口,通过输入口输入到热交换器。 供应配件被配置成使得其入口连接到中心腔,其出口连接到外腔,并且其近端口连接到管的中间腔。 返回配件构造成在管道的中心腔和外腔之间建立通道,使得通过供应配件供应到中心腔的加热流体通过外腔返回到供应配件。 返回配件还具有构造成连接到管道的中心管腔的远端口,使得输送到供应配件的近端口的输液管可以在通过中央管腔之后从返回配件的远端口输出 的管道。 当输入物沿着热交换器穿过时,其被沿着中心腔流动的加热流体以及沿着管道的外腔流动的被重新路由的加热流体加热。 热交换器通过其入口和出口流体耦合到加热器,使得用于加热输液的加热流体的温度保持在预定温度。