公开(公告)号：US06765780B2

公开(公告)日：2004-07-20

申请号：US10377272

申请日：2003-02-27

Applicant: Richard L. Brendel ,  Robert A. Stevenson ,  Christine A. Frysz ,  Haitong Zeng

Inventor： Richard L. Brendel ,  Robert A. Stevenson ,  Christine A. Frysz ,  Haitong Zeng

IPC: H01G435

CPC classification number: H01G4/35 ,  A61N1/3754

Abstract: An EMI feedthrough filter terminal assembly includes a capacitor having first and second sets of electrode plates, a first passageway having a first termination surface coupling the first set of electrode plates, a second passageway having a second termination surface coupling the second set of electrode plates, and a third termination surface exteriorly coupling the second set of electrode plates. A ferrule is adjacent to the capacitor and includes an oxide resistant biostable conductive pad, i.e., a noble metal pad, on a surface thereof coupled to the third termination surface. A conductive terminal pin extends through the first passageway in conductive relation with the first set of electrode plates. A conductive ground lead extends through the second passageway in conductive relation with the second set of electrode plates. An insulator is fixed to the ferrule for supporting the terminal pin in conductive isolation from the ferrule.

Abstract translation: EMI馈通滤波器端子组件包括具有第一和第二组电极板的电容器，第一通道具有耦合第一组电极板的第一端接表面，具有耦合第二组电极板的第二端接表面的第二通道， 以及外部联接第二组电极板的第三端接表面。 套圈与电容器相邻，并且在耦合到第三端接表面的表面上包括耐氧化生物稳定的导电焊盘，即贵金属焊盘。 导电端子销与第一组电极板以导电关系延伸穿过第一通道。 导电接地引线与第二组电极板以导电关系延伸穿过第二通道。 绝缘体固定到套圈上，用于将端子销与套圈导电隔离。

公开(公告)号：US06566978B2

公开(公告)日：2003-05-20

申请号：US09733342

申请日：2000-12-07

Applicant: Robert A. Stevenson ,  Matthew A. Dobbs

Inventor： Robert A. Stevenson ,  Matthew A. Dobbs

IPC: H03H701

CPC classification number: A61N1/3754 ,  H01G2/103 ,  H01G4/35

Abstract: A feedthrough capacitor filter assembly includes a capacitor having first and second sets of conductive electrode plates embedded within an insulative or dielectric body, and a leak detection vent for facilitated hermetic seal testing prior to use. At least one feedthrough terminal pin extends through the capacitor in conductive relative with the first set of electrode plates, and an outer ferrule is mounted about the capacitor in conductive relation with the second set of electrode plates. A hermetic seal is seated within the ferrule at one side of the capacitor to prevent leakage of fluid through the filter assembly. The hermetic seal is spaced from a face of the capacitor to form a gap therebetween.

公开(公告)号：US6159560A

公开(公告)日：2000-12-12

申请号：US448797

申请日：1999-11-24

Applicant: Robert A. Stevenson ,  Theo C. M. Rijsdijk

Inventor： Robert A. Stevenson ,  Theo C. M. Rijsdijk

IPC: C23C14/02 ,  C23C14/04 ,  C23C14/26 ,  C23C26/02 ,  H01G4/35 ,  C23C16/00

CPC classification number: H01G4/35 ,  C23C14/021 ,  C23C14/042 ,  C23C14/26 ,  C23C26/02

Abstract: A process is provided for depositing a silver coating on a metallic component of a feedthrough assembly to displace surface oxide and to deposit a conductive finish suitable for making an electrical connection. The feedthrough assembly includes a ferrule, an insulator mounted within the ferrule, and at least one tantalum terminal pin extending through the insulator. An inert gas dispensing hood is positioned over the terminal pin to create an argon gas environment around the terminal pin to prevent oxidation. A ground electrode of an electric circuit is connected to the feedthrough assembly. The electric circuit includes a direct current power source electrically connected to a resistor and a high energy storage capacitor. An active electrode of the electrical circuit is attached to a silver anode. The silver anode is brought into contact with a selected area of the terminal pin or ferrule to cause a portion of the silver anode to be deposited onto the contacted area while removing surface oxides from the contacted area. Areas which are not to be coated are shielded from contact with the silver anode using a paper mask.

Abstract translation: 提供了一种用于在馈通组件的金属部件上沉积银涂层以移位表面氧化物并沉积适合于进行电连接的导电涂层的工艺。 馈通组件包括套圈，安装在套圈内的绝缘体和延伸穿过绝缘体的至少一个钽端子销。 惰性气体分配罩位于端子销上方，以在端子销周围产生氩气环境，以防止氧化。 电路的接地电极连接到馈通组件。 电路包括电连接到电阻器和高能量存储电容器的直流电源。 电路的有源电极连接到银阳极。 使银阳极与端子销或套圈的选定区域接触，以使银阳极的一部分沉积在接触区域上，同时从接触区域去除表面氧化物。 使用纸面罩，防止不被涂覆的区域与银阳极接触。

公开(公告)号：US5973906A

公开(公告)日：1999-10-26

申请号：US40222

申请日：1998-03-17

Applicant: Robert A. Stevenson ,  Donald K. Haskell ,  Richard L. Brendel ,  Jason Woods ,  Mike Louder

Inventor： Robert A. Stevenson ,  Donald K. Haskell ,  Richard L. Brendel ,  Jason Woods ,  Mike Louder

IPC: A61N1/375 ,  H01G2/22 ,  H01G4/232 ,  H01G4/35 ,  H03H1/00

CPC classification number: H01G4/232 ,  A61N1/3754 ,  H01G2/22 ,  H01G4/35 ,  H03H1/0007

Abstract: An electromagnetic interference (EMI) filter capacitor assembly is provided for shielding and decoupling a conductive terminal pin or lead of the type used, for example, in an implantable medical device against passage of external interference signals. The EMI filter is constructed of relatively inexpensive ceramic chip capacitors which replace relatively expensive feedthrough capacitors as found in the prior art. The chip capacitors are mounted directly onto a hermetic feedthrough terminal in groups of two or more which vary in physical size, dielectric material and capacitance value so that they self-resonate at different frequencies. This "staggering" of resonant frequencies and direct installation at the hermetic terminal provides the EMI filter with sufficient broadband frequency attenuation. In one preferred form, multiple chip capacitor groupings are mounted onto a common base structure, with each capacitor grouping associated with a respective terminal pin. In another preferred form, a non-conductive substrate is provided with metalized circuit traces to better accommodate the mounting of the chip capacitors. Additionally, novel chip capacitor geometry/termination-metallization is provided which significantly reduces the internal inductance of the capacitor to improve its high frequency performance as an EMI filter. Such reduced inductance chip capacitor designs are readily adaptable to incorporate multiple electrically isolated active plate sets within a single monolithic casing.

Abstract translation: 提供电磁干扰（EMI）滤波电容器组件，用于屏蔽和解耦用于例如在可植入医疗装置中的类型的导电端子引脚或引线，以抵抗外部干扰信号的通过。 EMI滤波器由相对廉价的陶瓷芯片电容器构成，其代替现有技术中发现的相对昂贵的馈通电容器。 芯片电容器直接安装在两个或更多个组合的密封馈通端子上，其在物理尺寸，电介质材料和电容值上变化，使得它们在不同频率下自谐振。 谐振频率的“惊人”和密封端的直接安装为EMI滤波器提供了足够的宽带频率衰减。 在一个优选形式中，多个片式电容器组被安装在公共基座结构上，每个电容器分组与相应的端子引脚相关联。 在另一优选形式中，非导电衬底设置有金属化电路迹线，以更好地适应片式电容器的安装。 另外，提供了新颖的芯片电容器几何/端接金属化，这显着降低了电容器的内部电感，以提高其作为EMI滤波器的高频性能。 这种减小的电感芯片电容器设计容易适用于在单个整体式壳体内并入多个电隔离的有源板组。

公开(公告)号：US5333095A

公开(公告)日：1994-07-26

申请号：US55981

申请日：1993-05-03

Applicant: Robert A. Stevenson ,  Donald N. Pruett

Inventor： Robert A. Stevenson ,  Donald N. Pruett

IPC: A61N1/375 ,  H01G4/35 ,  H01G4/42

CPC classification number: H01G4/35 ,  A61N1/3754 ,  Y10T29/435

Abstract: A feedthrough filter capacitor assembly and related installation method are provided for shielding a conductive terminal pin or lead of the type used, for example, in an implantable medical device such as a heart pacemaker or defibrillator, against passage of external interference signals. The feedthrough assembly includes a terminal pin subassembly having at least one terminal pin supported within a cylindrical conductive ferrule by a hermetically sealed insulator ring. The ferrule is adapted for mounting onto a conductive pacemaker housing, as by welding or brazing, to support the terminal pin for feedthrough passage to the housing interior. A co-axial filter capacitor is mounted at an inboard side of the pacemaker housing, with capacitor electrode plate sets coupled respectively to the pacemaker housing and to the terminal pin by a conductive adhesive or the like. In one preferred form, multiple filter capacitors are provided in a substantially coplanar array within a common base structure, with each capacitor in association with a respective terminal pin.

Abstract translation: 提供馈通滤波电容器组件和相关的安装方法用于屏蔽例如用于例如心脏起搏器或去纤颤器的可植入医疗装置中的类型的导电端子引脚或引线，以防止外部干扰信号的通过。 馈通组件包括端子销子组件，其具有通过密封绝缘体环支撑在圆柱形导电套管内的至少一个端子销。 套管适用于通过焊接或铜焊安装到导电起搏器壳体上，以支撑端子销以用于馈通通道到壳体内部。 共轴滤波电容器安装在起搏器壳体的内侧，电容器电极板组通过导电粘合剂等分别连接到起搏器壳体和端子销。 在一个优选形式中，多个滤波电容器设置在公共基极结构内的基本上共面的阵列中，每个电容器与相应的端子引脚相关联。

公开(公告)号：US4327256A

公开(公告)日：1982-04-27

申请号：US144970

申请日：1980-04-29

Applicant: Stephen J. Crooks ,  Robert A. Stevenson

Inventor： Stephen J. Crooks ,  Robert A. Stevenson

IPC: H04M3/58 ,  H04M9/00 ,  H04Q3/58 ,  H04Q5/20

CPC classification number: H04M9/007

Abstract: An electronic key telephone system in which three or more key telephone instruments are interconnected or connected to an exchange line, as required, by way of a central control unit, each instrument being connected to the central unit by means of two speech wires and two signalling and control wires, an adaptor unit is provided to enable connection of an external extension telephone to the central unit by way of a single pair of wires.

Abstract translation: 一种电子钥匙电话系统，其中三个或更多个密钥电话乐器根据需要通过中央控制单元互连或连接到交换线，每个乐器通过两条语音线和两条信令连接到中央单元 和控制线，提供适配器单元以使得能够通过单根导线将外部分机与中央单元连接。