Implantable medical device having shielded and filtered feedthrough
assembly and methods for making such assembly
    41.
    发明授权
    Implantable medical device having shielded and filtered feedthrough assembly and methods for making such assembly 失效
    具有屏蔽和过滤的馈通组件的植入式医疗装置及其制造方法

    公开(公告)号:US5620476A

    公开(公告)日:1997-04-15

    申请号:US565204

    申请日:1995-11-13

    IPC分类号: A61N1/375 H01R13/52

    CPC分类号: A61N1/3754 H01R13/5202

    摘要: A wireless feedthrough assembly, for coupling leads received in the receptacles of a connector assembly to the electronic circuit within a cardiac pacemaker, includes a weld ring mounted in hermetically sealed fashion within a housing wall of the pacemaker and itself hermetically sealed to an intermediate portion of an elongated, multilayered structure. The multilayered structure includes layers of electrically insulating ceramic material on opposite sides of a planar array of printed conductors extending between a first portion of the structure within the connector assembly and an opposite second portion of the structure within the pacemaker. Connector pads at the ends of the printed conductors within the first portion are coupled to the receptacles of the connector assembly, while contact pads at the exterior of the second portion and coupled by vias to connector pads at the ends of the printed conductors are coupled to the electronic circuits within the pacemaker. Printed ground planes on the multilayered structure form a conductive envelope which shields the printed conductors from electric fields. The contact pads include positive and ground contacts to which are coupled discrete filtering capacitors for limiting the spectrum of frequencies receivable by the connector assembly. A method for making the aforedescribed feedthrough assembly is also disclosed.

    摘要翻译: 用于将接收在连接器组件的接收器中的引线的引线耦合到心脏起搏器内的电子电路的无线馈通组件包括以气密密封的方式安装在心脏起搏器的壳体壁内的焊接环,并且其自身密封到中心部分 细长的多层结构。 多层结构包括在连接器组件内的结构的第一部分与起搏器内的结构的相对的第二部分之间延伸的印刷导体的平面阵列的相对侧上的电绝缘陶瓷材料层。 第一部分内的印刷导体的端部处的连接器焊盘联接到连接器组件的插座,而第二部分的外部的接触焊盘和通孔之间的接触焊盘连接到印刷导体端部处的连接器焊盘, 起搏器内的电子线路。 多层结构上的印刷接地平面形成一个导电封套,可以将印刷的导体屏蔽电场。 接触焊盘包括正和接地触点,耦合离散滤波电容器,用于限制由连接器组件接收的频率频谱。 还公开了制造上述馈通组件的方法。