Capacitive filter feedthrough for implantable medical device
    25.
    发明授权
    Capacitive filter feedthrough for implantable medical device 失效
    用于可植入医疗器械的电容滤波器馈通

    公开(公告)号:US5870272A

    公开(公告)日:1999-02-09

    申请号:US852198

    申请日:1997-05-06

    IPC分类号: A61N1/375 H01G4/35 H01G4/008

    摘要: A capacitive filter feedthrough assembly and method of making the same are disclosed for shielding an implantable medical device such as pacemaker or defibrillator from electromagnetic interference or noise. A ferrule is adapted for mounting onto a conductive device housing by welding, soldering, brazing or gluing, and supports a terminal pin for feedthrough passage to a housing interior. A capacitive filter is mounted at the inboard side of a device housing, with capacitive filter electrode plate sets coupled respectively to the housing and the terminal pin by an electrically conductive combination of solder and brazing. In one embodiment of the invention, multiple capacitive filters are provided in an array within a common base structure, where each capacitive filter is associated with a respective terminal pin.

    摘要翻译: 公开了电容式滤波器馈通组件及其制造方法,用于屏蔽诸如起搏器或除颤器之类的可植入医疗装置免受电磁干扰或噪声。 套圈适于通过焊接,焊接,钎焊或胶合来安装到导电装置壳体上,并且将用于穿通通道的端子销支撑到壳体内部。 电容滤波器安装在器件壳体的内侧,电容滤波器电极板组通过焊料和钎焊的导电组合分别耦合到壳体和端子销。 在本发明的一个实施例中,多个电容滤波器以公共基底结构的阵列提供,其中每个电容滤波器与相应的端子引脚相关联。

    Method of centerless ground finishing of feedthrough pins for an
implantable medical device
    29.
    发明授权
    Method of centerless ground finishing of feedthrough pins for an implantable medical device 失效
    用于可植入医疗装置的馈通针的无心磨削整理方法

    公开(公告)号:US6076017A

    公开(公告)日:2000-06-13

    申请号:US22321

    申请日:1998-02-11

    摘要: A centerless grinding method of finishing feedthrough pins and corresponding devices for use in implantable medical devices and for components such as batteries in implantable medical devices is disclosed. The method provides certain advantages, including the elimination of longitudinal anomalies in drawn wire to thereby improve the hermeticity of implantable medical devices. In one of the preferred methods, the surface of an over-size medical grade wire having a known anomaly depth is centerless ground using an abrasive wheel and suitable coolant to a layer past which those anomalies disappear.

    摘要翻译: 公开了一种用于可植入医疗装置和诸如可植入医疗装置中的电池的部件的整流穿通销和相应装置的无心磨削方法。 该方法提供了一些优点,包括消除拉丝中的纵向异常,从而提高可植入医疗装置的气密性。 在优选的方法之一中,具有已知异常深度的超大尺寸医用级线材的表面是使用砂轮和适当的冷却剂进行无心磨削,通过这些异常消失的层。

    Method for making glass to metal seals
    30.
    发明授权
    Method for making glass to metal seals 失效
    制造玻璃到金属密封件的方法

    公开(公告)号:US5294241A

    公开(公告)日:1994-03-15

    申请号:US019946

    申请日:1993-02-19

    IPC分类号: C03C27/04

    CPC分类号: C03C27/044 Y10S228/903

    摘要: A method for making a seal between a sealing glass and titanium by forming a nitride layer on the titanium and then sealing the glass to the nitrided titanium. The formation of the nitride layer can be accomplished by the steps of placing the titanium in a substantially oxygen-free atmosphere comprising a major amount of an inert gas and a minor amount of nitrogen and heating the titanium in that atmosphere to a temperature of at least 300.degree. C. The method allows for the formation of the nitride layer and the glass seal in a single operation. The method works well in the manufacture of feedthroughs with conventional processing equipment.

    摘要翻译: 一种通过在钛上形成氮化物层然后将玻璃密封到氮化钛上而在密封玻璃和钛之间进行密封的方法。 可以通过以下步骤来实现氮化物层的形成:将钛置于包含大量惰性气体和少量氮气的基本上无氧的气氛中,并将该气氛中的钛加热到至少 该方法允许在单次操作中形成氮化物层和玻璃密封件。 该方法在具有常规加工设备的馈通制造中工作良好。