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19 条记录 (耗时 0.016 秒)

    Systems and methods for ablating body tissue
    5.
    发明授权
    Systems and methods for ablating body tissue 失效
    用于烧伤身体组织的系统和方法

    公开(公告)号：US5921982A

    公开(公告)日：1999-07-13

    申请号：US846739

    申请日：1997-04-30

    申请人： Michael D. Lesh ,  Stuart D. Edwards

    发明人： Michael D. Lesh ,  Stuart D. Edwards

    IPC分类号： A61B18/14 ,  A61B17/36

    CPC分类号： A61B18/1492 ,  A61B2017/003 ,  A61B2018/0016 ,  A61B2018/00214 ,  A61B2018/00273 ,  A61B2018/00815 ,  A61B2018/00839 ,  A61B2018/1425 ,  A61B2018/1435 ,  A61B2090/3782 ,  A61N7/02

    摘要： A medical probe device for contacting tissue within the body a catheter tube having a control end and a probe end. The probe end includes a housing having a port. An element is located within the housing that is movable between a first position confined within the housing and a second position extending through the port outside the housing. The element has a distal tip adapted to penetrate a tissue region during movement between the first and second position. The element comprises an electrode for emitting electromagnetic radio frequency energy into the tissue region, or cannula with an interior lumen for conveying fluid to and from the tissue region, or a sensor for sensing temperature conditions in the tissue region.

    摘要翻译： 一种医疗探针装置，用于使身体内的组织具有具有控制端和探针端的导管。 探针端部包括具有端口的壳体。 元件位于壳体内，其可在限制在壳体内的第一位置和延伸穿过壳体外部的端口的第二位置之间移动。 元件具有适于在第一和第二位置之间移动期间穿透组织区域的远侧末端。 该元件包括用于将电磁射频能量发射到组织区域中的电极，或具有用于向组织区域输送流体的内腔的插管或用于感测组织区域中的温度条件的传感器。

    Treating aneurysms by applying hardening/softening agents to hardenable/softenable substances
    10.
    发明授权
    Treating aneurysms by applying hardening/softening agents to hardenable/softenable substances 失效
    通过将硬化/软化剂施用于可硬化/可软化的物质来治疗动脉瘤

    公开(公告)号：US5921954A

    公开(公告)日：1999-07-13

    申请号：US677811

    申请日：1996-07-10

    申请人： Lawrence G. Mohr, Jr. ,  Stuart D. Edwards

    发明人： Lawrence G. Mohr, Jr. ,  Stuart D. Edwards

    IPC分类号： A61B18/14 ,  A61F2/82 ,  A61M31/00 ,  A61M29/00

    CPC分类号： A61F2/82 ,  A61B18/1492 ,  A61B2017/003 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00261 ,  A61B2018/0041 ,  A61B2018/00416 ,  A61B2018/00797 ,  A61B2090/3614

    摘要： A method and system for treating aneurysms by applying RF energy to collagen. A catheter is disposed near the aneurysm and collagen is exuded into or near the aneurysm. RF energy is applied, using the same catheter or a second catheter, to the collagen, causing the collagen to harden and cover the weak region of the blood vessel wall, and providing a base onto which epithelial cells of the blood vessel may grow. The catheter comprises an electrophysiology catheter, including a ring electrode preferably disposed to deliver between about 5 and about 30 watts of RF energy at a frequency preferably between about 450 and about 600 Megahertz, to apply sufficient energy to cause the collagen to harden while avoiding damage to surrounding tissue.

    摘要翻译： 通过向胶原蛋白施加RF能量来治​​疗动脉瘤的方法和系统。 导管位于动脉瘤附近，胶原蛋白渗出到动脉瘤内或附近。 使用相同的导管或第二导管将RF能量施加到胶原，使胶原蛋白硬化并覆盖血管壁的弱区域，并提供血管上皮细胞生长的基底。 导管包括电生理学导管，其包括环电极，优选设置为以大约450和大约600兆赫之间的频率递送约5至约30瓦的RF能量，以施加足够的能量以使胶原蛋白硬化，同时避免损伤 到周围的组织。