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    • 3. 发明授权
    • Capacitive filtered feedthrough array for an implantable medical device
    • 用于可植入医疗设备的电容滤波馈通阵列
    • US06414835B1
    • 2002-07-02
    • US09515385
    • 2000-03-01
    • William D. WolfJames StromCraig L. WiklundMary A. FraleyLynn M. SeifriedJames E. VolmeringPatrick F. MaloneSamuel F. Haq
    • William D. WolfJames StromCraig L. WiklundMary A. FraleyLynn M. SeifriedJames E. VolmeringPatrick F. MaloneSamuel F. Haq
    • H01G435
    • H01G4/35A61N1/3754H05K1/0306H05K1/112H05K1/162H05K3/4611H05K3/4629
    • A capacitive filtered feedthrough assembly is formed in a solid state manner to employ highly miniaturized conductive paths each filtered by a discoid capacitive filter embedded in a capacitive filter array. A non-conductive, co-fired metal-ceramic substrate is formed from multiple layers that supports one or a plurality of substrate conductive paths and it is brazed to a conductive ferrule, adapted to be welded to a case, using a conductive, corrosion resistant braze material. The metal-ceramic substrate is attached to an internally disposed capacitive filter array that encloses one or a plurality of capacitive filter capacitor active electrodes each coupled to a filter array conductive path and at least one capacitor ground electrode. Each capacitive filter array conductive path is joined with a metal-ceramic conductive path to form a feedthrough conductive path. Bonding pads are attached to the internally disposed ends of each feedthrough conductive path, and corrosion resistant, conductive buttons are attached to and seal the externally disposed ends of each feedthrough conductive path. A plurality of conductive, substrate ground paths are formed extending through the co-fired metal-ceramic substrate between internally and externally facing layer surfaces thereof and electrically isolated from the substrate conductive paths. The capacitor ground electrodes are coupled electrically to the plurality of conductive, substrate ground paths and to the ferrule.
    • 电容滤波的馈通组件以固态方式形成,以采用高度小型化的导电路径,每个导电路径由嵌入在电容滤波器阵列中的盘状电容滤波器滤波。 不导电的共烧金属陶瓷基板由多个支撑一个或多个基板导电路径的层形成,并且被钎焊到适于被焊接到壳体上的导电套圈上,使用导电的,耐腐蚀的 钎焊材料。 金属陶瓷衬底附接到内部设置的电容性滤波器阵列,该阵列围绕耦合到滤波器阵列导电路径的一个或多个电容滤波器电容器有源电极和至少一个电容器接地电极。 每个电容性滤波器阵列导电路径与金属 - 陶瓷导电路径连接以形成馈通导电路径。 接合垫连接到每个馈通导电路径的内部设置的端部,并且耐腐蚀的导电按钮附接到每个馈通导电路径的外部设置的端部并将其密封。 多个导电的衬底接地路径形成为延伸穿过共烧金属陶瓷衬底的内表面和外表面之间的层表面,并与衬底导电通路电绝缘。 电容器接地电极电耦合到多个导电的衬底接地路径和套圈。
    • 4. 发明授权
    • Leak testable capacitive filtered feedthrough for an implantable medical device
    • 用于可植入医疗设备的泄漏可测电容滤波馈通
    • US06349025B1
    • 2002-02-19
    • US09696601
    • 2000-10-25
    • Mary A. FraleyRonald F. HochDale W. SchakLynn M. SeifriedWilliam D. Wolf
    • Mary A. FraleyRonald F. HochDale W. SchakLynn M. SeifriedWilliam D. Wolf
    • H01G435
    • A61N1/3754
    • A filtered feedthrough that does not block passage of gas in a helium leak test and enables testing of the hermeticity of the feedthrough while inhibiting high voltage arcing is disclosed in single filtered feedthrough and multiple filtered feedthrough array configurations. Each filtered feedthrough comprises a ferrule, an insulator, a feedthrough pin, a filter element, and a pre-formed insulative barrier or spacer located in an interior space between the feedthrough insulator and the filter element rather than a non-conductive adhesive filling the interior space. A gas flow path or pathway extends from the interior space to the exterior of the feedthrough bypassing each filter element. Any leak test gas applied in a hermeticity test and passing through defects in the feedthrough insulator or its attachment to the feedthrough pin or ferrule enters the interior space. The gas pathway extends from an interior space through one or more side wall hole of the ferrule and/or through one or more gap between the ferrule interior surface and the outer surface of the filter element.
    • 在单个过滤的馈通和多个过滤的馈通阵列配置中公开了一种不阻挡氦泄漏测试中气体通过并且能够测试馈通的气密性同时抑制高电压电弧的过滤馈通。 每个滤波的馈通包括位于馈通绝缘体和过滤元件之间的内部空间中的套圈,绝缘体,馈通销,过滤器元件和预成形的绝缘屏障或间隔件,而不是填充内部的非导电粘合剂 空间。 气体流路或路径从内部空间延伸到穿过每个过滤器元件的馈通的外部。 在气密性测试中施加并穿过馈通绝缘体中的缺陷或其穿过引脚或套圈的附件的任何泄漏测试气体进入内部空间。 气体通道从内部空间延伸穿过套圈的一个或多个侧壁孔和/或通过套圈内表面和过滤元件的外表面之间的一个或多个间隙延伸。
    • 6. 发明授权
    • Adhesively-bonded capacitive filter feedthrough for implantable medical
device
    • 用于可植入医疗器械的粘合电容式滤波器馈通
    • US5867361A
    • 1999-02-02
    • US994024
    • 1997-12-18
    • William D. WolfMary A. FraleyLynn M. Seifried
    • William D. WolfMary A. FraleyLynn M. Seifried
    • A61N1/375H01G4/35H01G4/008
    • A61N1/3754A61N1/3718Y10T29/435
    • 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 electrically conductive adhesive or brazing, or a combination of adhesive 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.
    • 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导电粘合剂或钎焊分别耦合到壳体和端子销,或者粘合剂和钎焊的组合。 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。