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    System and method for detecting dislodgement of an implantable medical device
    3.
    发明申请
    System and method for detecting dislodgement of an implantable medical device 审中-公开
    用于检测植入式医疗装置的移动的系统和方法

    公开(公告)号：US20050004611A1

    公开(公告)日：2005-01-06

    申请号：US10852747

    申请日：2004-05-24

    申请人： Jerome Edwards ,  William Flickinger ,  Bradley Jascob

    发明人： Jerome Edwards ,  William Flickinger ,  Bradley Jascob

    IPC分类号： A61N1/08 ,  A61N1/37

    CPC分类号： A61N1/08 ,  A61N2001/083

    摘要： An improved system and method for detecting dislodgement of an implantable medical device (IMD) such as a catheter or lead is disclosed. The system includes means for generating multiple, orthogonally-related signals within a body. For example, three current signals having a current path substantially oriented in the X, Y, and Z directions may be generated within the body. The invention further includes an IMD having an affixation device such as a helix at a distal tip for attachment to body tissue, and at least two sensing devices to sense the signals generated within the body. The difference in signal levels between two of the sensing devices may be measured. For example, a voltage potential difference created by the currents within the body may be measured between two electrodes. This measured signal level has components in the X, Y, and Z directions, and may therefore be used to define a directional vector in three-dimensional space. This vector is indicative of the orientation of the IMD. By comparing a directional vector indicative of a current IMD position with a vector indicative of a reference orientation, dislodgement of the IMD may be detected. In one embodiment, the reference orientation may be associated with a position wherein the IMD distal end is substantially perpendicular to the tissue. The comparison between the reference orientation and a subsequent IMD orientation may be performed by calculating the angle between the two associated vectors. If the angle exceeds a predetermined maximum angle, dislodgement is indicated.

    摘要翻译： 公开了用于检测诸如导管或引线的可植入医疗装置（IMD）的移位的改进的系统和方法。 该系统包括用于在身体内产生多个正交相关信号的装置。 例如，可以在体内产生具有基本上在X，Y和Z方向定向的电流路径的三个电流信号。 本发明还包括具有固定装置的IMD，所述附着装置例如在远侧末端处用于附接到身体组织的螺旋，以及用于感测在体内产生的信号的至少两个感测装置。 可以测量两个感测装置之间的信号电平差。 例如，可以在两个电极之间测量由主体内的电流产生的电压电位差。 该测量信号电平具有X，Y和Z方向上的分量，因此可用于在三维空间中定义方向矢量。 该向量表示IMD的方向。 通过将指示当前IMD位置的方向矢量与指示参考取向的向量进行比较，可以检测IMD的移位。 在一个实施例中，参考取向可以与其中IMD远端基本上垂直于组织的位置相关联。 可以通过计算两个相关联的向量之间的角度来执行参考取向与随后的IMD取向之间的比较。 如果角度超过预定的最大角度，则表示移动。

    Advancer system for coaxial medical devices
    5.
    发明申请
    Advancer system for coaxial medical devices 审中-公开
    同轴医疗器械推进系统

    公开(公告)号：US20070149946A1

    公开(公告)日：2007-06-28

    申请号：US11634338

    申请日：2006-12-05

    申请人： Raju Viswanathan ,  William Flickinger

    发明人： Raju Viswanathan ,  William Flickinger

    IPC分类号： A61M5/178 ,  A61M31/00 ,  A61M25/00 ,  A61B5/00

    CPC分类号： A61M25/0113 ,  A61M25/0021 ,  A61M25/007 ,  A61M2025/0681

    摘要： A telescoping medical device system is provided that includes an outer sheath having a proximal end and a distal end, and a lumen extending through at least the distal end portion, and a slot extending along a portion of the outer sheath. The telescoping medical device also includes an inner member extending through the slot and through the lumen in the outer sheath. A first drive mechanically engages and drives the outer sheath, and a second drive mechanically engages and drives the inner member through the slot and into the lumen of the outer sheath.

    摘要翻译： 提供了一种伸缩式医疗装置系统，其包括具有近端和远端的外护套，以及至少延伸穿过远端部分的内腔和沿着外护套的一部分延伸的狭槽。 伸缩式医疗装置还包括延伸穿过狭槽并穿过外护套中的内腔的内部构件。 第一驱动器机械地接合和驱动外护套，并且第二驱动器机械地接合并驱动内部构件穿过狭槽并进入外护套的内腔。

    Connector systems and methods for implantable leads
    6.
    发明申请
    Connector systems and methods for implantable leads 失效
    可植入引线的连接器系统和方法

    公开(公告)号：US20050222634A1

    公开(公告)日：2005-10-06

    申请号：US10816711

    申请日：2004-04-02

    申请人： William Flickinger ,  Gary Lubben

    发明人： William Flickinger ,  Gary Lubben

    IPC分类号： A61N1/05 ,  A61N1/375

    CPC分类号： A61N1/3752 ,  A61N1/056 ,  H01R13/5224 ,  H01R13/59 ,  H01R43/26 ,  H01R2201/12

    摘要： A connector system for an implantable lead, which includes a header having a lumen for receiving the implantable lead. The lumen defines a mating surface and has an internal diameter larger than the lead to be connected therein. A collar is slidably engageable with the lead. Part of the collar is slidable into the header lumen, and part of the collar is releasably securable to the header such that the lead is retained in the lumen. The part of the collar that is slidable into the header lumen may be tapered. The tapered part of the collar and/or the mating surface may be formed of a compressible material.

    摘要翻译： 一种用于可植入引线的连接器系统，其包括具有用于接收可植入引线的内腔的头部。 内腔限定配合表面，其内径大于要连接在其中的引线。 领子可滑动地与导线接合。 套环的一部分可滑动到头腔中，并且套环的一部分可拆卸地固定到头部，使得铅保持在内腔中。 套环的可滑入头管腔的部分可以是锥形的。 套环和/或配合表面的锥形部分可以由可压缩材料形成。