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    Positioning of a medical device conductor in an MRI environment to reduce RF induced current
    51.
    发明授权
    Positioning of a medical device conductor in an MRI environment to reduce RF induced current 有权
    在MRI环境中定位医疗器械导体以减少RF感应电流

    公开(公告)号：US09061132B1

    公开(公告)日：2015-06-23

    申请号：US13400701

    申请日：2012-02-21

    申请人： Jeffrey Zweber ,  Robert Shawn Johnson

    发明人： Jeffrey Zweber ,  Robert Shawn Johnson

    IPC分类号： A61N1/00

    CPC分类号： A61N1/00 ,  A61N1/086 ,  A61N1/3718 ,  A61N1/375 ,  G01R33/288

    摘要： The present invention provides embodiments in which induced RF current heating along the length of a medical lead is reduced. Reduction of induced RF current heating in the medical lead is achieved by positioning a conductor about the exterior of an implantable medical device when the device is placed within an MRI environment. In one embodiment, an RF conductor is incorporated within a header assembly for connecting an implantable medical device to at least one conductor lead. The body of the RF conductor is positioned circumferentially around the implantable medical device. In another embodiment, the medical lead is positioned circumferentially around the exterior of the housing of the medical device. A series of clips or a sleeve holds the medical lead or RF conductor in place around the device.

    摘要翻译： 本发明提供了降低沿着医用引线长度的感应RF电流加热的实施例。 医疗引线上的感应RF电流加热的减少是通过将器件放置在MRI环境内时将导体围绕可植入医疗器械的外部定位。 在一个实施例中，RF导体结合在头部组件内，用于将可植入医疗器件连接到至少一个导体引线。 RF导体的主体围绕可植入医疗装置周向定位。 在另一个实施例中，医疗引线围绕医疗装置的外壳的外部周向定位。 一系列夹子或套筒将医疗引线或射频导体保持在设备周围。

    AR-15 TYPE BULLPUP CONVERTED FIREARM AND METHOD OF ASSEMBLY THEREOF
    54.
    发明申请
    AR-15 TYPE BULLPUP CONVERTED FIREARM AND METHOD OF ASSEMBLY THEREOF 审中-公开
    AR-15型BULLPUP转换式火焰及其组装方法

    公开(公告)号：US20140075812A1

    公开(公告)日：2014-03-20

    申请号：US13558264

    申请日：2012-07-25

    申请人： Shawn JOHNSON

    发明人： Shawn JOHNSON

    IPC分类号： F41A19/00

    CPC分类号： F41A19/00 ,  F41A19/08

    摘要： A bullpup assembly for converting an AR-15 type firearm having an AR-15 stock in unmodified assembly into a bullpup configuration. The bullpup assembly includes a frame body coupleable with the body of the firearm, the frame comprising a bullpup trigger, and the frame being configured to replace the AR-15 stock, and a trigger link coupled with the bullpup trigger and coupleable with a firearm trigger of the firearm, wherein actuation of the bullpup trigger actuates the firearm trigger via the trigger link.

    摘要翻译： 用于将具有未修改组件中的AR-15库存的AR-15型枪械转换成牛头形配置的斗牛车组件。 斗篷组件包括可与火器主体相连的框体，该框架包括一个斗杆触发器，并且该框架被配置成替换该AR-15原料，以及一个触发链接，该触发链接与该斗杆触发器耦合并与枪支触发器 枪弹触发器通过触发器链接致动枪支触发器。

    Multilayer helical wave filter for medical therapeutic or diagnostic applications
    56.
    发明授权
    Multilayer helical wave filter for medical therapeutic or diagnostic applications 有权
    用于医疗或诊断应用的多层螺旋波滤波器

    公开(公告)号：US08239041B2

    公开(公告)日：2012-08-07

    申请号：US13193501

    申请日：2011-07-28

    申请人： Kishore Kumar Kondabatni ,  Warren S. Dabney ,  Robert Shawn Johnson ,  Robert A. Stevenson ,  Christine A. Frysz

    发明人： Kishore Kumar Kondabatni ,  Warren S. Dabney ,  Robert Shawn Johnson ,  Robert A. Stevenson ,  Christine A. Frysz

    IPC分类号： A61N1/40

    CPC分类号： A61N1/05 ,  A61N1/086 ,  A61N1/3718 ,  H01F17/02 ,  H03H1/0007

    摘要： A multilayer helical wave filter having a primary resonance at a selected RF diagnostic or therapeutic frequency or frequency range, includes an elongated conductor forming at least a portion of an implantable medical lead. The elongated conductor includes a first helically wound segment having at least one planar surface, a first end and a second end, which forms a first inductive component, and a second helically wound segment having at least one planar surface, a first end and a second end, which forms a second inductive element. The first and second helically wound segments are wound in the same longitudinal direction and share a common longitudinal axis. Planar surfaces of the helically wound segments face one another, and a dielectric material is disposed between the facing planar surfaces of the helically wound segments and between adjacent coils of the helically wound segments, thereby forming a capacitance.

    摘要翻译： 在选定的RF诊断或治疗频率或频率范围内具有初级共振的多层螺旋波滤波器包括形成可植入医疗引线的至少一部分的细长导体。 细长导体包括具有至少一个平坦表面的第一螺旋缠绕段，形成第一感应组件的第一端和第二端，以及具有至少一个平坦表面的第二螺旋缠绕段，第一端和第二端 端部，其形成第二电感元件。 第一和第二螺旋缠绕段在相同的纵向缠绕并共享共同的纵向轴线。 螺旋缠绕段的平面表面彼此面对，并且电介质材料设置在螺旋缠绕段的相对的平坦表面之间和螺旋缠绕段的相邻线圈之间，从而形成电容。

    IMPLANTABLE LEAD FOR AN ACTIVE MEDICAL DEVICE HAVING AN INDUCTOR DESIGN MINIMIZING EDDY CURRENT LOSSES
    58.
    发明申请
    IMPLANTABLE LEAD FOR AN ACTIVE MEDICAL DEVICE HAVING AN INDUCTOR DESIGN MINIMIZING EDDY CURRENT LOSSES 有权
    具有电感器设计的活动医疗器械的可植入引线最小化EDDY电流损耗

    公开(公告)号：US20110230943A1

    公开(公告)日：2011-09-22

    申请号：US13042177

    申请日：2011-03-07

    申请人： Robert Shawn Johnson ,  Warren S. Dabney ,  Holly Noelle Moschiano ,  Robert A. Stevenson

    发明人： Robert Shawn Johnson ,  Warren S. Dabney ,  Holly Noelle Moschiano ,  Robert A. Stevenson

    IPC分类号： A61N1/05

    CPC分类号： H03H7/0115 ,  A61N1/05 ,  A61N1/086 ,  A61N1/3718 ,  H01F17/00 ,  H01F27/36 ,  H03H1/0007 ,  H03H2001/0042 ,  H03H2007/013

    摘要： A shielded component or network for an active medical device (AMD) implantable lead includes an implantable lead having a length extending from a proximal end to a distal end, all external of an AMD housing, and a passive component or network disposed somewhere along the length of the implantable lead. The passive component or network including at least one inductive component having a primary magnetic field line axis. A conductive shield or housing having a primary longitudinal axis substantially surrounds the inductive component or the passive network. The inductive component's magnetic field line axis is oriented substantially orthogonally to the primary longitudinal axis of the conductive shield or housing.

    摘要翻译： 用于有源医疗设备（AMD）可植入引线的屏蔽部件或网络包括具有从近端延伸到远端的长度的可植入引线，AMD壳体的所有外部以及设置在沿着长度的某处的被动部件或网络 的可植入铅。 无源部件或网络包括至少一个具有初级磁场线轴的感应部件。 具有主纵向轴线的导电屏蔽或壳体基本上围绕感应部件或无源网络。 电感元件的磁场线轴线基本上垂直于导电屏蔽或壳体的主纵向轴线定向。