中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

246 records (took 0.044 seconds)

    Apparatus and process for reducing the susceptability of active implantable medical devices to medical procedures such as magnetic resonance imaging
    33.
    发明授权
    Apparatus and process for reducing the susceptability of active implantable medical devices to medical procedures such as magnetic resonance imaging 失效
    用于降低主动植入式医疗装置对诸如磁共振成像之类医疗程序的易感性的装置和方法

    公开(公告)号：US07765005B2

    公开(公告)日：2010-07-27

    申请号：US11097999

    申请日：2005-03-31

    Applicant: Robert A. Stevenson

    Inventor： Robert A. Stevenson

    IPC: A61N1/375

    CPC classification number: A61N1/3754 ,  A61N1/086 ,  A61N1/37 ,  A61N1/3718 ,  H01F17/06 ,  H01F2017/065 ,  H01F2017/067 ,  H01G4/35 ,  H03H2001/0042 ,  H03H2001/0057

    Abstract: A feedthrough terminal assembly for an active implantable medical device (AIMD) includes a plurality of leadwires extending from electronic circuitry of the AIMD, and a lossy ferrite inductor through which the leadwires extend in non-conductive relation for increasing the impedance of the leadwires at selected RF frequencies and reducing magnetic flux core saturation of the lossy ferrite inductor through phase cancellation of signals carried by the leadwires. A process is also provided for filtering electromagnetic interference (EMI) in an implanted leadwire extending from an AIMD into body fluids or tissue, wherein the leadwire is subjected to occasional high-power electromagnetic fields such as those produced by medical diagnostic equipment including magnetic resonance imaging.

    Abstract translation: 用于有源可植入医疗设备（AIMD）的馈通终端组件包括从AIMD的电子电路延伸的多条引线，以及有损铁氧体电感器，引线在非导电关系中延伸，以增加选定的引线的阻抗 RF频率，并通过引线引出的信号的相位消除来减小有损铁氧体电感的磁通量饱和度。 还提供了一种过程，用于过滤从AIMD延伸到体液或组织中的植入引线中的电磁干扰（EMI），其中引线经受偶尔的高功率电磁场，例如由医学诊断设备产生的包括磁共振成像 。

    ELECTROMAGNETIC INTERFERENCE FILTER AND METHOD FOR ATTACHING A LEAD AND/OR A FERRULE TO CAPACITOR ELECTRODES
    35.
    发明申请
    ELECTROMAGNETIC INTERFERENCE FILTER AND METHOD FOR ATTACHING A LEAD AND/OR A FERRULE TO CAPACITOR ELECTRODES 有权
    用于连接导线和/或电容器电容器的电磁干扰滤波器和方法

    公开(公告)号：US20100134951A1

    公开(公告)日：2010-06-03

    申请号：US12563919

    申请日：2009-09-21

    Applicant: Richard L. Brendel ,  Robert A. Stevenson ,  Jason Woods

    Inventor： Richard L. Brendel ,  Robert A. Stevenson ,  Jason Woods

    IPC: H01G4/35 ,  H01G13/00 ,  H01R43/16

    CPC classification number: H01G4/228 ,  A61N1/3718 ,  A61N1/3754 ,  H01G4/35 ,  Y10T29/435 ,  Y10T29/49204

    Abstract: A discoidal feedthrough capacitor has its active electrode plates disposed within a dielectric body so that an edge of the active electrode plates is exposed at a surface of a through-hole for a conductive lead. The conductive lead is conductively coupled to the exposed edge of the electrode plates without an intervening conductive termination surface. Similarly, a ground electrode plate set of the feedthrough capacitor may have an edge exposed at the outer periphery of the capacitor for conductively coupling the exposed edge of the ground electrode plate to a conductive ferrule without an intervening conductive termination surface.

    Abstract translation: 盘状馈通电容器的有源电极板设置在电介质体内，使得有源电极板的边缘暴露在用于导电引线的通孔的表面上。 导电引线导电地耦合到电极板的暴露边缘，而没有中间的导电端接表面。 类似地，旁路电容器的接地电极板组可以在电容器的外周具有暴露的边缘，用于将接地电极板的暴露边缘导电耦合到导电套圈，而没有中间的导电端接表面。

    DIELECTRIC FLUID FILLED ACTIVE IMPLANTABLE MEDICAL DEVICES
    36.
    发明申请
    DIELECTRIC FLUID FILLED ACTIVE IMPLANTABLE MEDICAL DEVICES 审中-公开
    电介质填充活动可植入医疗器械

    公开(公告)号：US20090312835A1

    公开(公告)日：2009-12-17

    申请号：US12477422

    申请日：2009-06-03

    Applicant: Robert A. Stevenson

    Inventor： Robert A. Stevenson

    IPC: A61M1/12 ,  H05K7/00 ,  A61N1/375 ,  A61N1/362 ,  A61N1/39 ,  A61M5/14 ,  B65B31/00

    CPC classification number: A61N1/375 ,  A61M1/122 ,  A61M5/14276 ,  A61M2207/00 ,  A61M2209/045 ,  A61N1/08 ,  A61N1/37 ,  A61N1/3925

    Abstract: Active implantable medical devices (AIMDs) are backfilled with a dielectric fluid to increase the volts per mil dielectric breakdown strength between internal circuit elements. In a method for backfilling the AIMD with dielectric fluid, substantially all air and moisture is evacuated from the AIMD housing prior to backfilling the AIMD housing with a dielectric fluid having a dielectric breakdown strength greater than air, nitrogen or helium. The AIMD is constructed to accommodate volumetric expansion or contraction of the dielectric fluid due to changes of pressure or temperature of the dielectric fluid to maintain integrity of the AIMD.

    Abstract translation: 有源植入式医疗设备（AIMD）用电介质流体回填，以增加内部电路元件之间的密度介电击穿强度。 在用介质流体回填AIMD的方法中，在用具有大于空气，氮或氦的介电击穿强度的介电流体回填AIMD外壳之前，基本上所有的空气和水分都从AIMD壳体中排出。 AIMD被构造成适应由于介电流体的压力或温度的变化而导致的介电流体的体积膨胀或收缩，以保持AIMD的完整性。

    SWITCH FOR TURNING OFF THERAPY DELIVERY OF AN ACTIVE IMPLANTABLE MEDICAL DEVICE DURING MRI SCANS
    38.
    发明申请
    SWITCH FOR TURNING OFF THERAPY DELIVERY OF AN ACTIVE IMPLANTABLE MEDICAL DEVICE DURING MRI SCANS 审中-公开
    切换磁共振扫描中有效可植入医疗器械的治疗方法

    公开(公告)号：US20090163980A1

    公开(公告)日：2009-06-25

    申请号：US12337170

    申请日：2008-12-17

    Applicant: Robert A. Stevenson

    Inventor： Robert A. Stevenson

    IPC: A61N1/08

    CPC classification number: A61N1/3718 ,  A61N1/086

    Abstract: An MRI-compatible electronic medical therapy system is provided for temporarily preventing current flow through an implanted lead wire in the presence of an induced radio frequency, magnetic, or static field. One or more normally closed switches are disposed in series between the AIMD and the one or more distal electrodes. The switch may be incorporated in the AIMD, lead wire, or within or adjacent to the electrode. The switch remains closed during normal AIMD-related therapy, but temporarily opens in the presence of an induced radio frequency, magnetic, or static field so as to prevent current flow through the electrode and lead wire. The switches prevent current from circulating that could be induced by a medical therapeutic diagnostic device, which can cause overheating of lead wires, excessive currents or temperatures and tissue damage.

    Abstract translation: 提供一种MRI兼容的电子医疗治疗系统，用于在感应的射频，磁场或静态场的存在下暂时防止流过植入的导线的电流。 一个或多个常闭开关串联设置在AIMD和一个或多个远端电极之间。 该开关可以结合在AIMD，引线中，或者在电极内部或附近。 在正常的AIMD相关治疗期间，开关保持关闭，但是在存在感应射频，磁场或静电场的情况下暂时打开，以防止电流流过电极和引线。 这些开关防止可能由医疗诊断装置引起的电流循环，这可导致引线过热，过度的电流或温度以及组织损伤。

    Inductor capacitor EMI filter for human implant applications
    39.
    发明授权
    Inductor capacitor EMI filter for human implant applications 失效
    用于人体植入应用的电感电容EMI滤波器

    公开(公告)号：US06999818B2

    公开(公告)日：2006-02-14

    申请号：US10825900

    申请日：2004-04-15

    Applicant: Robert A. Stevenson ,  Christine A. Frysz ,  Haytham Hussein ,  Richard L. Brendel

    Inventor： Robert A. Stevenson ,  Christine A. Frysz ,  Haytham Hussein ,  Richard L. Brendel

    IPC: A61N1/375 ,  A61N1/16

    CPC classification number: A61N1/3754 ,  H03H1/0007 ,  H03H2001/0042

    Abstract: A feedthrough terminal assembly for an active implantable medical device includes a conductive ferrule conductively coupled to a housing of the medical device, a feedthrough capacitor conductively coupled to the ferrule, an inductor closely associated with the capacitor in non-conductive relation, and a conductive terminal pin extending through the capacitor and the inductor. The terminal pin extends through the inductor in non-conductive relation and is conductively coupled to active electrode plates of the capacitor. In one preferred form, the terminal pin is wound about the inductor. Additionally, the inductor may be maintained in close association with the capacitor without forming a direct physical attachment therebetween.

    Abstract translation: 用于有源可植入医疗装置的馈通端子组件包括导电耦合到医疗装置的壳体的导电套圈，导电耦合到套圈的馈通电容器，与非导电关系的电容器紧密相关的电感器，以及导电端子 引脚延伸穿过电容器和电感器。 端子引脚以非导通关系延伸穿过电感器，并且与电容器的有源电极板导电耦合。 在一个优选形式中，端子引脚缠绕在电感器周围。 另外，电感器可以与电容器保持紧密关联，而不在其间形成直接的物理连接。

    Process for manufacturing an EMI filter feedthrough terminal assembly
    40.
    发明授权
    Process for manufacturing an EMI filter feedthrough terminal assembly 有权
    制造EMI滤波器馈通端子组件的方法

    公开(公告)号：US06643903B2

    公开(公告)日：2003-11-11

    申请号：US09812371

    申请日：2001-03-16

    Applicant: Robert A. Stevenson ,  Donald K. Haskell ,  Richard L. Brendel

    Inventor： Robert A. Stevenson ,  Donald K. Haskell ,  Richard L. Brendel

    IPC: H01G700

    CPC classification number: H01G4/35 ,  A61N1/3754 ,  Y10T29/43 ,  Y10T29/435 ,  Y10T29/49002 ,  Y10T29/4913 ,  Y10T29/49139 ,  Y10T29/49147

    Abstract: A process for manufacturing an EMI filter feedthrough terminal assembly is provided for mating a feedthrough filter capacitor with an hermetic terminal assembly including a ferrule and one or more lead wires which extend through the ferrule in non-conductive relation. The process includes the steps of placing the hermetic terminal assembly, having a capture flange, into a holding fixture, and forming a seat of non-conductive thermal-setting material onto the terminal assembly within the capture flange. A feedthrough filter capacitor is loaded into the capture flange on top of the seat, and then the seat is cured. A conductive thermal-setting material is dispensed between an outer diameter of the feedthrough filter capacitor and the capture flange. The assembly is then centrifuged to pack the conductive thermal-setting material. The conductive thermal-setting material is then cured between the outer diameter of the feedthrough filter capacitor and the capture flange. Preferably, the height of the capture flange is one-quarter to three-quarters of an axial thickness of the capacitor.

    Abstract translation: 提供了一种用于制造EMI滤波器馈通端子组件的方法，用于将馈通滤波电容器与包括套圈和一个或多个引线的密封端子组件配合，该导线以非导电关系延伸穿过套圈。 该方法包括以下步骤：将具有捕获凸缘的密封端子组件放置到保持夹具中，以及在捕获凸缘内的终端组件上形成非导电热固化材料座。 馈通滤波电容器装载到座椅顶部的捕获法兰中，然后固定座椅。 导通热固化材料分配在馈通滤波电容器的外径与捕获凸缘之间。 然后将组件离心以包装导电热定型材料。 导电热固化材料然后在馈通滤波电容器的外径和捕获凸缘之间固化。 优选地，捕获凸缘的高度是电容器的轴向厚度的四分之三到四分之三。

Patent Agency Ranking