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    STEERABLE COAXIAL ANTENNA SYSTEMS FOR CARDIAC ABLATION
    13.
    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
    15.
    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 。

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