MLCC filter on an aimd circuit board conductively connected to a ground pin attached to a hermetic feedthrough ferrule

    公开(公告)号:US11147977B2

    公开(公告)日:2021-10-19

    申请号:US16452785

    申请日:2019-06-26

    Abstract: An EMI/energy dissipating filter for an active implantable medical device (AIMD) is described. The filter comprises a first gold braze hermetically sealing the insulator to a ferrule that is configured to be mounted in an opening in a housing for the AIMD. A lead wire is hermetically sealed in a passageway through the insulator by a second gold braze. A circuit board substrate is disposed adjacent the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active metallization that is electrically connected to the active electrode plates and a ground metallization that is electrically connected to the ground electrode plates of the capacitor. A ground electrical path extends from the ground metallization of the chip capacitor to the ferrule. A conductive ground pin is electrically and mechanically connected to the ferrule. The ground path comprises an internal ground plate disposed within the circuit board substrate. The internal ground plate is electrically connected to the ground metallization of the chip capacitor and to either the ferrule or the ground pin connected to the ferrule. An active electrical path extends between the active metallization of the chip capacitor and the lead wire.

    Filtered feedthrough assembly having an MLCC filter capacitor on an AIMD circuit board attached to the ferrule of a hermetic feedthrough

    公开(公告)号:US10722706B2

    公开(公告)日:2020-07-28

    申请号:US16106937

    申请日:2018-08-21

    Abstract: An EMI/energy dissipating filter for an active implantable medical device (AIMD) is described. The filter comprises a first gold braze hermetically sealing the insulator to a ferrule that is configured to be mounted in an opening in a housing for the AIMD. A lead wire is hermetically sealed in a passageway through the insulator by a second gold braze. A circuit board substrate is disposed adjacent the insulator. A two-terminal chip capacitor disposed adjacent to the circuit board has an active end metallization that is electrically connected to the active electrode plates and a ground end metallization that is electrically connected to the at least one ground electrode plates of the chip capacitor. There is a ground path electrically extending between the ground end metallization of the chip capacitor and the ferrule. The ground path comprises at least a first electrical connection material connected directly to the first gold braze, and at least an internal ground plate disposed within the circuit board substrate with the internal ground plate being electrically connected to both the first electrical connection material and the ground end metallization of the chip capacitor. An active path electrically extends between the active end metallization of the chip capacitor and the lead wire.

    Header block for an AIMD with an abandoned lead connector cavity
    10.
    发明授权
    Header block for an AIMD with an abandoned lead connector cavity 有权
    带有废弃导线连接器腔体的AIMD接头块

    公开(公告)号:US09352148B2

    公开(公告)日:2016-05-31

    申请号:US14192835

    申请日:2014-02-27

    Abstract: A header for an active implantable medical device includes a header block body and at least one active connector cavity configured to be attachable to an active lead. A first conductive leadwire has a first and second end, where the first end of the first conductive leadwire is electrically connected to the at least one active connector cavity and the second end of the first conductive leadwire is connectable to a hermetic terminal of the active implantable medical device. At least one abandoned connector cavity is located within the header block body configured to attachable to an abandoned lead. A second conductive leadwire has a first and second end, where the first end of the second conductive leadwire is electrically connected to the at least one abandoned connector cavity and the second end of the second conductive leadwire is connectable to the active implantable medical device housing.

    Abstract translation: 用于有源可植入医疗装置的头部包括头部块主体和被配置为可附接到有源引线的至少一个有源连接器空腔。 第一导电引线具有第一和第二端,其中第一导电引线的第一端电连接到至少一个有源连接器腔,并且第一导电引线的第二端可连接到主动植入式的密封端 医疗装置。 至少一个废弃的连接器腔位于头部块主体内,其构造成可附接到废弃的引线。 第二导电引线具有第一和第二端,其中第二导电引线的第一端电连接到至少一个放弃的连接器腔,并且第二导电引线的第二端可连接到有源可植入医疗装置壳体。

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