Methods and apparatus for intervertebral disc prosthesis insertion
    4.
    发明授权
    Methods and apparatus for intervertebral disc prosthesis insertion 有权
    椎间盘假体插入的方法和装置

    公开(公告)号:US08206447B2

    公开(公告)日:2012-06-26

    申请号:US12044165

    申请日:2008-03-07

    IPC分类号: A61F2/44 A61B17/88 A61B17/70

    摘要: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.

    摘要翻译: 一种用于将椎间盘假体插入到两个椎骨之间的空间中的方法包括将假体部分地插入到限制的空间中,以防止假体的端板铰接,释放假体以免约束,以及将无约束的假体插入到空间中。 在一些实施例中,该方法包括用抓握装置来抓握假体,以在限制下插入假体中心部分,松开抓握装置以释放假体而不受约束,并且使用抓握装置和/或一个将假体推入椎间盘空间 或更多单独的推动装置。 一种系统包括抓握装置,至少一个单独的推动装置,以及任选的脊椎扩散装置和/或脊椎中线指示装置。

    Artificial Intervertebral Disc With Lower Height
    8.
    发明申请
    Artificial Intervertebral Disc With Lower Height 有权
    具有较低高度的人造椎间盘

    公开(公告)号:US20090234458A1

    公开(公告)日:2009-09-17

    申请号:US12400221

    申请日:2009-03-09

    IPC分类号: A61F2/44

    摘要: An intervertebral disc is provided having an upper plate, a lower plate, and a core. The upper and lower plates include outer vertebral body contacting surfaces which are provided with attachment enhancing features to ensure bone integration. The attachment enhancing features shown include one or more fins, serrations and teeth. An opposite surface of the plates from the vertebral body contacting surfaces is formed with a recess which serves as a bearing surface for the core. In order to form an intervertebral disc with a lower disc height, at least one of the recesses is provided opposite a corresponding dome shaped portion on the vertebral body contacting surfaces. This allows the plates to be formed with a thinner profile for a smaller overall disc height. In addition to providing a lower overall height to the artificial disc, the dome shaped portion of the plates also provides a more anatomically shaped outer vertebral body contacting surface.

    摘要翻译: 提供了具有上板,下板和芯的椎间盘。 上板和下板包括外椎体接触表面,其具有附接增强特征以确保骨整合。 所示的附件增强特征包括一个或多个翅片,锯齿和齿。 与椎体接触表面的板的相对表面形成有用作芯的支承表面的凹部。 为了形成具有较低椎间盘高度的椎间盘,至少一个凹部设置成与椎体接触表面上相应的圆顶形部分相对。 这允许板形成更薄的轮廓以用于较小的整个盘高度。 除了向人造盘提供较低的整体高度之外,板的圆顶形部分还提供更解剖学上形状的外椎体接触表面。

    Intervertebral prosthesis placement instrument
    9.
    发明申请
    Intervertebral prosthesis placement instrument 有权
    椎间假体放置仪器

    公开(公告)号:US20060030862A1

    公开(公告)日:2006-02-09

    申请号:US11187403

    申请日:2005-07-21

    IPC分类号: A61F2/34

    摘要: The invention concerns an intervertebral prosthesis placement instrument which can be used to facilitate accurate positioning of a spinal disc prosthesis between adjacent spinal vertebrae. The instrument (10) has opposed jaws 12 formed with tips (24) that are shaped for insertion between the vertebrae. The jaws can be moved apart from one another to distract the vertebrae, allowing the prosthesis to enter between the vertebrae. The jaws also have opposed surfaces which are shaped to embrace the prosthesis between them and to guide the prosthesis into position.

    摘要翻译: 本发明涉及一种椎间假体放置器械,其可以用于促进椎间盘假体在相邻脊椎椎骨之间的精确定位。 仪器(10)具有形成有尖端(24)的相对的钳口12,其被成形为用于插入在椎骨之间。 颌骨可以彼此分开移动以分散椎骨,允许假体进入椎骨之间。 钳口还具有相对的表面,其被成形为在它们之间包围假体并且将假体引导到位。