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1. 发明授权

US5817130A Implantable cardiac cardioverter/defibrillator with EMI suppression filter with independent ground connection 失效
标题翻译：具有独立接地连接的EMI抑制滤波器的可植入式心脏复律/除颤器
公开(公告)号：US5817130A
公开(公告)日：1998-10-06
申请号：US803536
申请日：1997-02-20
申请人： Timothy John Cox , John K. Day
发明人： Timothy John Cox , John K. Day
IPC分类号： A61N1/37 , A61N1/375 , A61N1/39
CPC分类号： A61N1/3931 , A61N1/37 , A61N1/3754 , A61N1/3718 , Y10S128/901
摘要： An implantable defibrillator, which may include cardioversion and pacemaker capabilities, which has EMI filters which are not susceptible to defibrillation shocks and which reduce or eliminate the effects of charging noise on sensing circuits used for continuous confirmation. A first filter capacitor is provided between a sense electrode, which may include pacing capabilities, and a ground reference within a hermetically sealed can containing a pulse/shock generator. A second filter capacitor is provided between a sensing/pacing reference electrode, which may also be a high voltage or shock electrode, and the ground reference. In addition, there is a third filter capacitor between the ground reference and the can. Preferably, the connections of the first, second and third filter capacitors are physically as well as electrically adjacent to each other. The filter capacitors are housed in the can and in or adjacent to a feedthrough assembly which passes through the can. Most preferably, the filter capacitors are discoidal capacitors mounted in or adjacent to the feedthrough.
摘要翻译：可植入除颤器，其可以包括心脏复律和起搏器功能，其具有不易于除颤冲击的EMI滤波器，并且其减少或消除了用于连续确认的感测电路上的充电噪声的影响。第一滤波电容器设置在可包括起搏能力的感测电极和包含脉冲/冲击发生器的密封罐内的接地基准之间。在感测/起搏参考电极（也可以是高电压或冲击电极）和接地参考之间提供第二滤波电容器。另外，接地参考和罐之间有一个第三个滤波电容。优选地，第一，第二和第三滤波电容器的连接在物理上以及彼此电气相邻。滤波电容器容纳在罐中并且位于或靠近通过罐的馈通组件。最优选地，滤波电容器是安装在馈通或邻近馈通的盘形电容器。

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