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    Cryotreatment device and method
    1.
    发明授权
    Cryotreatment device and method 有权

    公开(公告)号：US06595988B2

    公开(公告)日：2003-07-22

    申请号：US09887536

    申请日：2001-06-22

    申请人： Dan Wittenberger ,  Claudia Lückge ,  Sean Carroll

    发明人： Dan Wittenberger ,  Claudia Lückge ,  Sean Carroll

    IPC分类号： A61B1818

    CPC分类号： A61B18/02 ,  A61B2017/00292 ,  A61B2018/0022 ,  A61B2018/0212 ,  A61B2018/0262

    摘要： A medical device for cryotreatment of bodily regions is disclosed. The device comprises an inflatable support structure coupled to the distal end portion of a catheter shaft, the support structure being further enveloped by an expandable membrane to define an expansion chamber between the support structure and the membrane. An inflation lumen is coupled to the support structure to inject an inert, insulating fluid in the support structure, thereby expanding the support structure and the expandable membrane, wherein the resultant expansion chamber formed therebetween is substantially conical in shape. Refrigerant is injected into the expansion chamber, thereby creating localized cooling of tissues adjacent to the expansion chamber, the cooling region being substantially conical in shape. Alternately, a second inflatable support structure is provided inside of the expandable membrane and distal to the first support structure, to define an expansion chamber therebetween that is substantially toroidal in shape, thereby enabling the creation of circumferential cooling regions when refrigerant is injected into said expansion chamber.

    Cryosurgical catheter
    6.
    发明授权
    Cryosurgical catheter 失效
    冷冻导管

    公开(公告)号：US08585690B2

    公开(公告)日：2013-11-19

    申请号：US13238607

    申请日：2011-09-21

    申请人： John W. Lehmann ,  Dan Wittenberger ,  Claudia Lückge ,  Jean-Pierre Lalonde ,  Cristian Petre ,  Domenic Santoianni

    发明人： John W. Lehmann ,  Dan Wittenberger ,  Claudia Lückge ,  Jean-Pierre Lalonde ,  Cristian Petre ,  Domenic Santoianni

    IPC分类号： A61B18/02

    CPC分类号： A61B18/02 ,  A61B2017/00243 ,  A61B2017/00292 ,  A61B2017/00973 ,  A61B2018/00095 ,  A61B2018/0212 ,  A61F2007/0298 ,  A61M25/0029 ,  A61M2025/0039 ,  Y10S977/906

    摘要： A cryogenic catheter includes an elongate, contiguous, thermally-transmissive region coupled to the catheter, the thermally-transmissive region being sufficiently flexible to change from a linear configuration to an arcuate configuration. The thermally-transmissive region may include a plurality of interconnected thermally-transmissive segments that are generally cylindrical in shape. The cryogenic catheter may be in fluid communication with a fluid source, and may include one or more fluid injection tubes. Further, an injection tube may be slidably disposed within the catheter so that the injection tube is longitudinally movable relative to an outer surface of the catheter. The cryogenic catheter may also be in communication with a controller programmed to regulate delivery of a cryogenic fluid from the fluid source to the medical device.

    摘要翻译： 低温导管包括连接到导管的细长的邻接的热传导区域，该热传导区域具有足够的柔性以从线性构型改变为弧形构型。 该热传导区域可以包括大致圆柱形的多个相互连接的热传递段。 低温导管可以与流体源流体连通，并且可以包括一个或多个流体注入管。 此外，注射管可以可滑动地设置在导管内，使得注射管相对于导管的外表面可纵向移动。 低温导管还可以与被编程为调节低温流体从流体源到医疗装置的输送的控制器连通。