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    STEERABLE COAXIAL ANTENNA SYSTEMS FOR CARDIAC ABLATION
    22.
    发明申请
    STEERABLE COAXIAL ANTENNA SYSTEMS FOR CARDIAC ABLATION 审中-公开
    可调式同轴天线系统

    公开(公告)号：WO1993020893A1

    公开(公告)日：1993-10-28

    申请号：PCT/US1993003429

    申请日：1993-04-12

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  EDWARDS, Stuart, D. ,  JACKSON, Jerome ,  MORSE, Thomas, M. ,  OWENS, Patrick, M.

    IPC: A61N01/40

    CPC classification number: A61M25/0144 ,  A61B17/22 ,  A61B18/18 ,  A61B18/1815 ,  A61B2018/1861 ,  A61M25/0147

    Abstract: A steerable antenna assembly (14) employs a coaxial cable having a proximal region (50) for connection to a source of energy and a distal region (16) for propagating the energy. The coaxial cable also has an intermediate region (32) between the distal and proximal regions that has a greater degree of flexibility than the proximal region. A steering mechanism (10) is connected directly to the intermediate region (32) of the coaxial cable for bending the intermediate region (32) and, with it, the distal energy propagation region of the coaxial cable relative to its proximal region.

    Abstract translation: 可操纵的天线组件（14）采用具有用于连接到能量源的近端区域（50）的同轴电缆和用于传播能量的远端区域（16）。 同轴电缆还具有在远端区域和近侧区域之间具有比近侧区域更大程度的柔性的中间区域（32）。 转向机构（10）直接连接到同轴电缆的中间区域（32），用于弯曲中间区域（32），并且与其一起相对于其近端区域的远端能量传播区域。

    COMBINATION MONOPHASIC ACTION POTENTIAL/ABLATION CATHETER AND HIGH-PERFORMANCE FILTER SYSTEM
    24.
    发明申请
    COMBINATION MONOPHASIC ACTION POTENTIAL/ABLATION CATHETER AND HIGH-PERFORMANCE FILTER SYSTEM 审中-公开
    组合单相动作电位/吸收管和高性能过滤器系统

    公开(公告)号：WO1992021285A1

    公开(公告)日：1992-12-10

    申请号：PCT/US1992003142

    申请日：1992-04-16

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  EDWARDS, Stuart, D. ,  FRANZ, Michael, R. ,  THOMPSON, Russell, B. ,  STERN, Roger, A.

    IPC: A61B05/04

    CPC classification number: A61B18/1206 ,  A61B5/0422 ,  A61B18/12 ,  A61B18/1492 ,  A61B2017/00292 ,  A61B2017/003 ,  A61B2017/00473 ,  A61B2018/00107 ,  A61B2018/00351 ,  A61B2018/00577 ,  A61B2018/0066 ,  A61B2018/00839 ,  A61B2018/1253 ,  A61B2018/126 ,  A61B2018/1495 ,  A61B2018/1497 ,  A61B2018/162 ,  A61B2562/0215 ,  A61N1/056

    Abstract: A combination catheter for both detecting monophasic action potentials and ablating surface tissue in an in vivo heart of a patient is provided. The apparatus includes a catheter probe having a terminal tip portion (10) and an electrode (20) carried on the tip such that a portion of the tip electrode (20) is exposed to ambient. A reference electrode (50) is spaced along the tip from the first electrode for supplying a reference potential signal. An ablating electrode (30) is located adjacent to but electrically insulated from both the tip (20) and reference (50) electrodes for providing electromagnetic energy to the tip. The electrodes are electrically connected to the proximal end of the catheter through individual conductors or wires (22, 32, and 50) that run through an insulated cable. An electronic filter is provided to permit the recording of MAPs during ablation without radiofrequency interference. The catheter may also include standard mapping and/or pacing electrodes (80 and 75) respectively. The catheter may further include a steering mechanism for positioning the catheter at various treatment sites in the heart, and a structure for holding the tip electrode in substantially perpendicular contact with heart tissue with a positive pressure, and for spacing the reference electrode from the heart tissue.

    Abstract translation: 提供了用于检测患者的体内心脏中的单相动作电位和消融表面组织的组合导管。 该装置包括导管探头，其具有端子末端部分（10）和承载在尖端上的电极（20），使得尖端电极（20）的一部分暴露于环境中。 参考电极（50）沿着尖端与第一电极间隔开，用于提供参考电位信号。 烧蚀电极（30）位于与尖端（20）和参考电极（50）电极相邻但电绝缘的位置，用于向尖端提供电磁能。 电极通过穿过绝缘电缆的单个导体或导线（22,32和50）电连接到导管的近端。 提供电子滤波器以允许在消融期间MAP的记录而没有射频干扰。 导管还可以分别包括标准贴图和/或起搏电极（80和75）。 导管还可以包括用于将导管定位在心脏中的各种治疗部位的转向机构，以及用于将尖端电极与正常压力基本上垂直接触心脏组织并将参考电极与心脏组织间隔开的结构 。

    ASYMMETRIC MULTIPLE ELECTRODE SUPPORT STRUCTURES
    26.
    发明申请
    ASYMMETRIC MULTIPLE ELECTRODE SUPPORT STRUCTURES 审中-公开
    不对称多电极支持结构

    公开(公告)号：WO1998018520A2

    公开(公告)日：1998-05-07

    申请号：PCT/US1997019372

    申请日：1997-10-27

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  SWANSON, David, K. ,  WHAYNE, James, G. ,  KORDIS, Thomas, F. ,  PANESCU, Dorin

    IPC: A61N01/05

    CPC classification number: A61B5/0422 ,  A61N1/056 ,  A61N1/0565 ,  A61N1/06 ,  A61N1/20 ,  A61N1/403

    Abstract: Multiple electrode support structures (20(a)) have asymmetric geometries, either axially, or radially, or both. The asymmetric support structures are assembled from spline elements (51, 58) that extend between a distal hub (24) and a proximal base (26). In one embodiment, the spline elements (51, 58) are circumferentially spaced about the distal hub (24) in a radially asymmetric fashion, creating a greater density of spline elements in one region of the structure than in another region. In the same or another embodiment, the spline elements (51, 58) are preformed in an axially asymmetric fashion along their lengths, creating a different geometry in their distal regions than in their proximal regions.

    Abstract translation: 多个电极支撑结构（20（a））具有轴向或径向或两者的不对称几何形状。 不对称支撑结构由在远侧轮毂（24）和近侧基座（26）之间延伸的花键元件（51,58）组装。 在一个实施例中，花键元件（51,58）以径向不对称的方式围绕远侧轮毂（24）周向间隔开，从而在结构的一个区域中产生比在另一个区域更大的花键元件密度。 在相同或另一个实施例中，花键元件（51,58）沿其长度以轴向不对称方式预成型，在其远侧区域中产生与其近端区域不同的几何形状。

    TISSUE HEATING AND ABLATION SYSTEMS AND METHODS WHICH PREDICT MAXIMUM TISSUE TEMPERATURE
    29.
    发明申请
    TISSUE HEATING AND ABLATION SYSTEMS AND METHODS WHICH PREDICT MAXIMUM TISSUE TEMPERATURE 审中-公开
    组织加热和吸收系统和预测最大组织温度的方法

    公开(公告)号：WO1996039967A1

    公开(公告)日：1996-12-19

    申请号：PCT/US1996009598

    申请日：1996-06-07

    Applicant: EP TECHNOLOGIES, INC.

    Inventor： EP TECHNOLOGIES, INC. ,  PANESCU, Dorin ,  FLEISCHMAN, Sidney, D. ,  SWANSON, David, K.

    IPC: A61B17/38

    CPC classification number: A61B18/1206 ,  A61B18/1402 ,  A61B18/1492 ,  A61B2018/00083 ,  A61B2018/00095 ,  A61B2018/00791 ,  A61B2018/00803 ,  A61N1/403

    Abstract: This invention is systems and methods to heat or ablate body or ablation energy to a tissue region. The systems and methods measure a first temperature using a temperature sensing element associated with the electrode (16). The systems and methods also measure a second temperature using a temperature sensing element associated with the electrode (16). The systems and methods process at least one of the first and second temperatures to derive a prediction of maximum temperature of the tissue region. The systems and methods generate an output that controls the transmission of the heating or ablation energy based, at least in part, upon the maximum tissue temperature prediction.

    Abstract translation: 本发明是将身体或消融能量加热或消融到组织区域的系统和方法。 系统和方法使用与电极（16）相关联的温度感测元件来测量第一温度。 系统和方法还使用与电极（16）相关联的温度感测元件测量第二温度。 系统和方法处理第一和第二温度中的至少一个以导出组织区域的最大温度的预测。 系统和方法至少部分地基于最大组织温度预测产生控制加热或消融能量传递的输出。

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