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    Expandable catheter having two sets of electrodes, and method of use
    52.
    发明授权
    Expandable catheter having two sets of electrodes, and method of use 失效
    具有两组电极的可扩展导管及其使用方法

    公开(公告)号：US06682526B1

    公开(公告)日：2004-01-27

    申请号：US09716561

    申请日：2000-11-17

    Applicant: Christopher S. Jones ,  Arthur W. Zikorus ,  Mark P. Parker ,  Brian E. Farley ,  Joseph M. Tartaglia

    Inventor： Christopher S. Jones ,  Arthur W. Zikorus ,  Mark P. Parker ,  Brian E. Farley ,  Joseph M. Tartaglia

    IPC: A61B1818

    CPC classification number: A61B18/1492 ,  A61B2017/22038 ,  A61B2017/22051 ,  A61B2017/22067 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00404 ,  A61B2018/00488 ,  A61B2018/00589 ,  A61B2018/00898 ,  A61B2018/124 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2090/3782 ,  A61B2218/002

    Abstract: A catheter includes a first plurality of expandable leads and a second plurality of expandable leads separate and longitudinally spaced-apart from the first plurality to deliver energy to a hollow anatomical structure, such as vein, fallopian tube, hemorrhoid, esophageal varix, to effectively ligate that structure. Each of the leads includes an electrode located at the distal end of the respective electrode lead. Polarizations of the leads may be selected to achieve the power distribution desired. Each electrode lead includes an outward bend such that when a movable sheath is moved out of contact with the leads, they expand outwardly into apposition with an inner wall of the structure to be ligated. High frequency energy can be applied from the leads to create a heating effect in the surrounding tissue of the anatomical structure. The diameter of the hollow anatomical structure is reduced by the heating effect, and the electrodes are freely moved inward by the shrinking structure while still maintaining apposition with the inner wall of the shrinking structure.

    Abstract translation: 导管包括第一多个可扩展引线和与第一多个分开并纵向间隔开的第二多个可扩展引线，以将能量传递到中空解剖结构，例如静脉，输卵管，痔疮，食管静脉曲张，以有效地连接 那个结构。 每个引线包括位于相应电极引线的远端处的电极。 可以选择引线的极化以实现所需的功率分配。 每个电极引线包括向外的弯曲部，使得当可移动护套移动离开与引线接触时，它们向外扩展成与要连接的结构的内壁相配合。 可以从引线施加高频能量以在解剖结构的周围组织中产生加热效果。 中空解剖结构的直径由于加热效应而减小，并且电极通过收缩结构自由地向内移动，同时仍然保持与收缩结构的内壁的配合。

    Endoscopic ablation system with improved electrode geometry
    57.
    发明申请
    Endoscopic ablation system with improved electrode geometry 有权
    内镜消融系统具有改善的电极几何形状

    公开(公告)号：US20020147447A1

    公开(公告)日：2002-10-10

    申请号：US10105722

    申请日：2002-03-25

    Inventor： Gary L. Long

    IPC: A61B018/14

    CPC classification number: A61B18/1492 ,  A61B18/1815 ,  A61B2017/00296 ,  A61B2018/00083 ,  A61B2018/00291 ,  A61B2018/00488 ,  A61B2018/00982 ,  A61B2018/1475 ,  A61B2018/1495 ,  A61B2018/1497

    Abstract: An endoscopic ablation system is provided for use with a flexible endoscope for the ablative treatment of diseased tissue on the interior lining a body lumen. The endoscopic ablation system includes a support member for supporting at least two electrodes that are electrically connected to a RF generator. The electrodes have a shape, size, and spacing that provide ablation between the electrodes, while minimizing ablation of tissue directly underneath the electrodes. The endoscopic ablation system can also include a sheath that fits over a flexible endoscope. A flexible coupling can join the support member to the sheath to facilitate intubation. The support member can include a side opening, and the sheath can include a seal, so that the aspiration means of the endoscope may be used to evacuate the air from inside the body lumen and pull the tissue to be treated into intimate contact with the electrodes.

    Abstract translation: 内窥镜消融系统被提供用于与柔性内窥镜一起使用，用于在衬里体腔内部的患病组织的烧蚀治疗。 内窥镜消融系统包括用于支撑电连接到RF发生器的至少两个电极的支撑构件。 电极具有在电极之间提供消融的形状，尺寸和间隔，同时最小化直接在电极下方的组织的消融。 内窥镜消融系统还可以包括装配在柔性内窥镜上的护套。 柔性联接件可以将支撑构件连接到护套以便于插管。 支撑构件可以包括侧开口，并且护套可以包括密封件，使得内窥镜的抽吸装置可以用于从体腔内部排出空气并且将待处理的组织拉到与电极紧密接触 。

    Method and aparatus for automated biopsy and collection of soft tissue
    60.
    发明申请
    Method and aparatus for automated biopsy and collection of soft tissue 审中-公开
    自动活检和收集软组织的方法和装置

    公开(公告)号：US20010007938A1

    公开(公告)日：2001-07-12

    申请号：US09790134

    申请日：2001-02-21

    Inventor： Gary L. Long

    IPC: A61B018/14

    CPC classification number: A61N1/06 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00285 ,  A61B2018/00482 ,  A61B2018/00488 ,  A61B2018/00494 ,  A61B2018/00553 ,  A61B2018/00898 ,  A61B2018/00982

    Abstract: A bipolar electrosurgical instrument is described which may be used for heating the inner lining of a lumen or cavity within a patient. In particular, the present invention is directed to an electrosurgical instrument including a flexible elongated tube having a proximal and a distal end, a first balloon electrode attached to the distal end of the flexible elongated tube. The first balloon electrode includes a first expandable sleeve formed from an electrically insulating material and a first electrically conductive fluid in the expandable sleeve. A first electrode is positioned in electrical contact with the first electrically conductive fluid. A return balloon electrode is spaced proximally from the first balloon electrode, wherein the return balloon electrode includes a second expandable formed from an electrically insulating material and a second electrically conductive fluid disposed within the second expandable sleeve. A return electrode is positioned in electrical contact with the second electrically conductive fluid.

    Abstract translation: 描述了双极电外科器械，其可用于加热患者体内或腔内的内衬。 特别地，本发明涉及一种电外科器械，其包括具有近端和远端的柔性细长管，附接到柔性细长管的远端的第一球囊电极。 第一球囊电极包括由电绝缘材料形成的第一可膨胀套筒和可膨胀套筒中的第一导电流体。 第一电极定位成与第一导电流体电接触。 返回气球电极与第一球囊电极向近侧间隔开，其中返回气球电极包括由电绝缘材料形成的第二可膨胀和设置在第二可膨胀套筒内的第二导电流体。 返回电极定位成与第二导电流体电接触。

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