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    • 7. 发明授权
    • Indwelling heat exchange catheter and method of using same
    • 留置热交换导管及其使用方法
    • US06416533B1
    • 2002-07-09
    • US09546814
    • 2000-04-11
    • Yves Pierre GobinScott M. EvansMichael JonesWayne A. Noda
    • Yves Pierre GobinScott M. EvansMichael JonesWayne A. Noda
    • A61F712
    • A61F7/12A61M25/1011
    • A catheter is adapted to exchange heat with a body fluid, such as blood, flowing in a body conduit, such as a blood vessel. The catheter includes a shaft with a heat exchange region disposed at its distal end. This region may include at least one balloon which is adapted to receive a remotely cooled heat exchange fluid preferably flowing in a direction counter to that of the body fluid. Embodiments including multiple balloons enhance the surface area of contact, and the mixing of both the heat exchange and the body fluid. The catheter can be positioned to produce hypothermia in a selective area of the body without cooling the entire body system. It is of particular advantage in brain surgeries where stroke, trauma or cryogenic tumors can best be addressed under hypothermic conditions.
    • 导管适于与诸如血管的体导管中流动的体液(例如血液)进行热交换。 导管包括设置在其远端处具有热交换区域的轴。 该区域可以包括至少一个气囊,其适于接收远离冷却的热交换流体,优选地在与体液相反的方向上流动。 包括多个气囊的实施例增强了接触的表面积,以及热交换和体液两者的混合。 导管可以定位成在身体的选择性区域产生低体温,而不会冷却整个身体系统。 在中风,创伤或低温肿瘤可以在低温条件下最好地解决的脑手术中特别有利。