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1. 发明授权

US5398683A Combination monophasic action potential/ablation catheter and high-performance filter system 失效
标题翻译：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
申请人： Stuart D. Edwards , Michael R. Franz , Russel B. Thompson , Roger A. Stern
发明人： Stuart D. Edwards , Michael R. Franz , Russel B. Thompson , Roger A. Stern
IPC分类号： A61B5/0492 , A61B5/0402 , A61B5/042 , A61B5/0478 , A61B17/00 , A61B18/12 , A61B18/14 , A61N1/05 , A61B5/04
CPC分类号： 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
摘要： 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.
摘要翻译：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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