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    Articulated systems for cardiac ablation
    1.
    发明授权
    Articulated systems for cardiac ablation 失效
    用于心脏消融的铰接系统

    公开(公告)号：US5368592A

    公开(公告)日：1994-11-29

    申请号：US126126

    申请日：1993-09-23

    Applicant: Roger A. Stern ,  Stuart D. Edwards ,  Jerome Jackson

    Inventor： Roger A. Stern ,  Stuart D. Edwards ,  Jerome Jackson

    IPC: A61M25/01 ,  A61N1/40

    CPC classification number: A61M25/0147 ,  Y10T403/32311

    Abstract: An improved assembly for steering and orienting a functional element at the distal end of a catheter tube holds the functional element with its major axis aligned with the axis of the catheter tube for convenient steering to a tissue site. The mechanism can also pivot the functional element in response to an external force to orient the major axis of the functional element generally parallel to the plane of the tissue site, without bending the catheter tube.

    Abstract translation: 用于在导管管的远端处转向和定向功能元件的改进的组件保持功能元件，其主轴与导管管的轴线对准，以便于转向组织部位。 机构还可以响应于外力使功能元件枢转，以使功能元件的长轴大致平行于组织部位的平面定向，而不弯曲导管。

    Combination monophasic action potential/ablation catheter and high-performance filter system
    8.
    发明授权
    Combination monophasic action potential/ablation catheter and high-performance filter system 失效
    组合单相动作电位/消融导管和高性能过滤系统

    公开(公告)号：US5398683A

    公开(公告)日：1995-03-21

    申请号：US92762

    申请日：1993-07-16

    Applicant: Stuart D. Edwards ,  Michael R. Franz ,  Russel B. Thompson ,  Roger A. Stern

    Inventor： Stuart D. Edwards ,  Michael R. Franz ,  Russel B. Thompson ,  Roger A. Stern

    IPC: A61B5/0492 ,  A61B5/0402 ,  A61B5/042 ,  A61B5/0478 ,  A61B17/00 ,  A61B18/12 ,  A61B18/14 ,  A61N1/05 ,  A61B5/04

    CPC classification number: A61B18/1206 ,  A61B18/12 ,  A61B18/1492 ,  A61B5/0422 ,  A61N1/056 ,  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

    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 and an electrode carried on the tip such that a portion of the tip electrode is exposed to ambient. A reference electrode is spaced along the tip from the first electrode for supplying a reference potential signal. An ablating electrode is located adjacent to but electrically insulated from both the tip and reference 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 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. 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。 该装置包括导管探针，其具有端子末端部分和在尖端上承载的电极，使得尖端电极的一部分暴露于环境中。 参考电极沿着尖端与第一电极间隔开，以提供参考电位信号。 烧蚀电极位于与尖端和参考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各个导体或电线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。 导管还可以包括标准贴图和/或起搏电极。 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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