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    Catheter with multiple heating/cooling fibers employing fiber spreading features
    1.
    发明授权
    Catheter with multiple heating/cooling fibers employing fiber spreading features 有权
    具有采用纤维扩散特征的多个加热/冷却纤维的导管

    公开(公告)号：US06450990B1

    公开(公告)日：2002-09-17

    申请号：US09294080

    申请日：1999-04-19

    申请人： Blair D. Walker ,  Scott M. Evans ,  David P. Balding ,  Gregg Hallam ,  Lynn M. Shimada

    发明人： Blair D. Walker ,  Scott M. Evans ,  David P. Balding ,  Gregg Hallam ,  Lynn M. Shimada

    IPC分类号： A61F712

    CPC分类号： A61F7/123 ,  A61B2018/00011 ,  A61F7/12 ,  A61F2007/0054 ,  A61F2007/126 ,  A61M1/369 ,  A61M5/44 ,  A61M25/00 ,  A61M25/0009 ,  A61M2205/36

    摘要： A catheter using multiple hollow fibers to carry a heating/cooling fluid employs fiber spreading features to improve heat transfer and help prevent clotting of body fluids within which the catheter is immersed. The catheter includes a length of outer tube surrounding an inner tube. The inner tube conveys fluids in one direction, and the passageway between inner and outer tubes conveys fluids in the opposite direction. The inner and outer tubes have proximal distal ends. The distal end is closed, but the proximal end is open to permit introduction of a heating or cooling fluid into the inner tube, and withdrawal of the fluid from the passageway between the inner and outer tubes. At the tubes' distal end resides a proximal fluid transfer housing coupled to multiple hollow heat exchange fibers. The distal ends of these fibers may be commonly connected to a distal fluid transfer housing and optional reservoir, which cooperatively return fluid to the passageway between inner and outer tubes. In another embodiment, each fiber includes both outflowing and return lumens, enabling the fibers' distal ends to freely move about. In another embodiment, each fiber proceeds outward from the proximal fluid transfer housing, and returns back to form a loop. In each different embodiment, the invention includes one or more actuating structures to spread the fibers. The actuating structure may include, for example, fiber shaping, a retractable spreading member, elastic bias built into the fibers, etc.

    摘要翻译： 使用多个中空纤维携带加热/冷却流体的导管使用纤维铺展特征来改善热传递并有助于防止导管浸入其中的体液的凝结。 导管包括围绕内管的一段长度的外管。 内管沿一个方向输送流体，内管和外管之间的通道沿相反方向输送流体。 内管和外管具有近端远端。 远端是封闭的，但是近端是敞开的，以允许将加热或冷却流体引入内管，并且将流体从内管和外管之间的通道中取出。 在管的远端存在耦合到多个中空热交换纤维的近端流体转移壳体。 这些纤维的远端可以通常连接到远端流体传送壳体和任选的储存器，其将流体协作地返回到内管和外管之间的通道。 在另一个实施例中，每个纤维包括流出和回流腔两者，使纤维的远端能够自由移动。 在另一个实施例中，每个纤维从近端流体转移壳体向外进入，并返回以形成环。 在每个不同的实施例中，本发明包括一个或多个驱动结构以扩展纤维。 致动结构可以包括例如纤维成型，可伸缩铺展件，内置在纤维中的弹性偏置等

    Method for a central venous line catheter having a temperature control system
    2.
    发明授权
    Method for a central venous line catheter having a temperature control system 有权
    具有温度控制系统的中心静脉导管的方法

    公开(公告)号：US08128595B2

    公开(公告)日：2012-03-06

    申请号：US09939239

    申请日：2001-08-24

    申请人： Blair D. Walker ,  Scott M. Evans ,  David P. Balding ,  Peter Barker

    发明人： Blair D. Walker ,  Scott M. Evans ,  David P. Balding ,  Peter Barker

    IPC分类号： A61M29/00 ,  A61F7/12

    CPC分类号： A61F7/12 ,  A61B2017/00084 ,  A61F7/123 ,  A61F2007/0054 ,  A61F2007/126 ,  A61M1/369 ,  A61M5/44 ,  A61M25/00 ,  A61M25/002 ,  A61M25/003 ,  A61M25/0032 ,  A61M25/02 ,  A61M25/10 ,  A61M25/1011 ,  A61M2025/0036 ,  A61M2025/1013 ,  A61M2205/36 ,  A61M2205/366

    摘要： A kit of parts comprises a system and instructions for use for controlling patient temperature which uses a central venous line catheter having a heat exchange element. The central venous line catheter is provided with one or more lumens for providing access to the central blood supply of the patient, and with additional lumens for communicating heat exchange fluid to the heat exchange element. Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set transports the heat exchange fluid between the central venous line and the temperature control unit, with a pump serving to circulate the fluid in a closed fluid circuit in the system.

    摘要翻译： 一套零件包括使用具有热交换元件的中心静脉导管的系统和用于控制患者体温的说明书。 中心静脉导管设置有一个或多个腔，用于提供对患者的中央血液供应的通路，以及用于将热交换流体传递到热交换元件的附加腔。 热交换流体温度通过反馈回路来控制，其中感测患者温度并用于控制包括与热交换流体热交换关系的加热装置和/或冷却装置的温度控制单元。 管组在中央静脉管路和温度控制单元之间输送热交换流体，其中泵用于将流体循环在系统中的封闭流体回路中。

    Dual balloon central venous line catheter temperature control system
    7.
    发明授权
    Dual balloon central venous line catheter temperature control system 有权
    双气球中心静脉导管温度控制系统

    公开(公告)号：US06299599B1

    公开(公告)日：2001-10-09

    申请号：US09427745

    申请日：1999-10-27

    申请人： Nora Tran Pham ,  Lynn M. Shimada ,  Scott M. Evans ,  Blair D. Walker

    发明人： Nora Tran Pham ,  Lynn M. Shimada ,  Scott M. Evans ,  Blair D. Walker

    IPC分类号： A61F712

    CPC分类号： A61F7/123 ,  A61B2018/00011 ,  A61F2007/126 ,  A61M1/369 ,  A61M5/44

    摘要： A system for controlling patient temperature uses a central venous line catheter having axially spaced distal and proximal heat exchange balloons. The central venous line catheter is provided with one or more lumens for providing access to the central blood supply of the patient, and with additional lumens for communicating heat exchange fluid to the balloons. Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set transports the heat exchange fluid between the central venous line and the temperature control unit, with a pump serving to circulate the fluid in a closed fluid circuit in the system.

    摘要翻译： 用于控制患者体温的系统使用具有轴向间隔开的远端和近端热交换球囊的中心静脉导管导管。 中心静脉导管设置有一个或多个腔，用于提供对患者的中央血液供应的通路，以及用于将热交换流体传送到气囊的附加腔。 热交换流体温度通过反馈回路来控制，其中感测患者温度并用于控制包括与热交换流体热交换关系的加热装置和/或冷却装置的温度控制单元。 管组在中央静脉管路和温度控制单元之间输送热交换流体，其中泵用于将流体循环在系统中的封闭流体回路中。

    System and method for controlling rate of heat exchange with patient
    8.
    发明授权
    System and method for controlling rate of heat exchange with patient 有权
    控制患者热交换率的系统和方法

    公开(公告)号：US07278984B2

    公开(公告)日：2007-10-09

    申请号：US10334414

    申请日：2002-12-31

    申请人： Wayne A. Noda ,  Scott M. Evans ,  Mark Evan Whitebook ,  David P. Balding

    发明人： Wayne A. Noda ,  Scott M. Evans ,  Mark Evan Whitebook ,  David P. Balding

    IPC分类号： A61F7/12

    CPC分类号： A61F7/12 ,  A61F7/0085 ,  A61F2007/0054 ,  A61F2007/126

    摘要： A patient control system uses a patient-implanted catheter in thermal communication with a fluid bath via a circulating fluid circuit. A controller automatically controls the temperature of the fluid bath as required for selectively cooling or heating the patient in accordance with patient temperature measurements. The controller thermally decouples the catheter and patient from the fluid bath during changes in fluid bath temperatures in order to overcome the effects of system thermal mass.

    摘要翻译： 患者控制系统使用患者植入的导管与流体浴通过循环流体回路热连通。 根据患者的温度测量，控制器根据需要自动控制流体浴的温度以选择性地冷却或加热患者。 控制器在流体浴温度的变化期间使导管和患者与流体浴热分离，以克服系统热质量的影响。

    Indwelling heat exchange catheter
    9.
    发明授权
    Indwelling heat exchange catheter 有权
    留置热交换导管

    公开(公告)号：US06589271B1

    公开(公告)日：2003-07-08

    申请号：US10015505

    申请日：2001-12-13

    申请人： Elbert Tzeng ,  Vaso Adzich ,  Hortensia Pompa ,  Scott M. Evans ,  Peter Barker ,  William J. Worthen ,  Suzanne C. Winter ,  David P. Balding ,  Kenneth A. Collins

    发明人： Elbert Tzeng ,  Vaso Adzich ,  Hortensia Pompa ,  Scott M. Evans ,  Peter Barker ,  William J. Worthen ,  Suzanne C. Winter ,  David P. Balding ,  Kenneth A. Collins

    IPC分类号： A61F700

    CPC分类号： A61N1/39 ,  A61B2018/00011 ,  A61F7/12 ,  A61F7/123 ,  A61F2007/0056 ,  A61F2007/126 ,  A61M1/369 ,  A61M5/44 ,  A61M25/1011 ,  A61N1/36017

    摘要： Catheters adapted to exchange heat with a body fluid flowing through a body conduit employ helical elongate lumens for heat transfer with the body fluid. The helical elongate lumen of a catheter forms multiple turns extending longitudinally of a portion of the catheter with the turns each being bonded to the catheter along a fraction of the length of the turn. The length of the lumen and its orientation in each turn has the lumen otherwise displaced over a major portion of its length from the elongate body. The turns of the helical lumen can be arranged in sets having different lengths to encounter all areas of the flow. One or more infusion lumens may also extend to an infusion port or ports. The helical elongate lumen is defined by an elongate, thin-walled element. This lumen is in fluid communication with a heater/chiller supplying a working fluid for heat transfer through the wall of the elongate element defining the helical elongate lumen. A proximal hub may be associated with the catheter to establish at least one suture anchor and to receive the heater/chiller flow through input and output lumens associated with the catheter and in fluid communication with the helical elongate lumens. The elongated lumens may also be arranged in non-helical arrangements such as in a semi-circular configuration, a figure-eight loop configuration or a random loop configuration.

    摘要翻译： 适于与流过身体导管的体液交换热量的导管采用螺旋形细长腔，用于与体液的热传递。 导管的螺旋细长内腔形成多个匝，导管沿导管的一部分纵向延伸，匝各自沿转弯长度的一部分与导管接合。 内腔的长度及其在每一个回合中的取向具有内腔，其长度方向与细长主体相距很大一部分。 螺旋腔的匝数可以以具有不同长度的组合排列以遇到流动的所有区域。 一个或多个输注腔也可以延伸到输注端口。 螺旋细长的内腔由细长的薄壁元件限定。 该内腔与加热器/冷却器流体连通，加热器/冷却器供应用于通过限定螺旋细长内腔的细长元件的壁进行热传递的工作流体。 近端毂可以与导管相关联，以建立至少一个缝线锚，并且通过与导管相关联并与螺旋细长腔流体连通的输入和输出腔来接收加热器/制冷机流。 细长的腔也可以以非螺旋布置的方式布置，例如半圆形配置，图八循环配置或随机环配置。