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    • 8. 发明授权
    • Cryosurgical devices and methods for endometrial ablation
    • 用于子宫内膜消融的冷冻手术装置和方法
    • US07500973B2
    • 2009-03-10
    • US11020791
    • 2004-12-22
    • David W. VanceletteNicholas R. van der WaltJia Hua XiaoEva S. Snitkin
    • David W. VanceletteNicholas R. van der WaltJia Hua XiaoEva S. Snitkin
    • A61B18/18
    • A61B18/02A61B2017/4216A61B2018/0022A61B2018/0212A61B2018/0262
    • A cryoablation system including a cannula having a proximal end, a distal end, and a longitudinal axis, an expandable balloon extending from the distal end of the cannula and fluidly connected to a source of heat transfer fluid by at least one fluid path, a pump for circulating the heat transfer fluid into and out of the balloon, a probe handle coupled to the proximal end of the cannula and in fluidic communication with the balloon through the cannula, and a heat exchanger for varying the temperature of the heat transfer fluid, wherein the heat exchanger is fluidly connected to a secondary refrigerant source. The heat exchanger may be positioned within the probe handle, within the cannula, or at least partially within the balloon. The heat transfer fluid of this cryoablation system preferably has a freezing point lower than about −110° C. and a boiling point greater than about 50° C.
    • 一种冷冻消融系统,包括具有近端,远端和纵向轴线的插管,从套管的远端延伸并且通过至少一个流体路径流体连接到传热流体源的可膨胀气囊,泵 用于使所述传热流体循环到所述球囊中;探针手柄,其耦合到所述套管的近端并通过所述套管与所述球囊流体连通;以及热交换器,用于改变所述传热流体的温度,其中 热交换器流体地连接到二次制冷剂源。 热交换器可以位于探针手柄内,套管内,或者至少部分地位于气囊内。 该冷冻消融系统的传热流体优选具有低于约-110℃的凝固点和大于约50℃的沸点。