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    • 50. 发明申请
    • Instruments and methods for implanting nucleus replacement material in an intervertebral disc nucleus space
    • 将核替换材料植入椎间盘细胞核空间的仪器和方法
    • US20070191861A1
    • 2007-08-16
    • US11343088
    • 2006-01-30
    • Randall AllardThomas FrancisHai Trieu
    • Randall AllardThomas FrancisHai Trieu
    • A61F2/00
    • A61F2/4611A61F2002/444A61F2002/4627
    • Instruments and methods are provided for implanting nucleus replacement material in an intervertebral disc nucleus space employing an inserter having proximal and distal end regions and a passageway effective for passing the material therethrough. The distal end region of the inserter includes a conical-shaped outer surface, and the passageway exits through a side surface of the inserter in the distal end region at other than the apex of the conical-shaped outer surface. The nucleus replacement material passing through the inserter exits into an intervertebral disc nucleus space when the passageway exit in the side surface at the distal end region is disposed in the nucleus space. The instrument may also include a cover locking mechanism having pivotally connected first and second cover plates with a latching tab and landing sized and configured to mate and lock the cover plates automatically when the inserter assumes an implanting configuration.
    • 提供的仪器和方法用于使用具有近端和远端区域的插入器以及有效地使材料通过其中的通道将细胞核置换材料植入椎间盘细胞核空间中。 插入器的远端区域包括圆锥形的外表面,并且该通道在除圆锥形外表面的顶点之外的远端区域中通过插入器的侧表面离开。 通过插入器的核置换材料在远端区域的侧表面中的通道出口设置在细胞核空间中时,离开椎间盘细胞核空间。 仪器还可以包括具有枢转连接的第一和第二盖板的盖锁定机构,其具有锁定突片和着陆部,其尺寸和构造在插入器呈现植入构造时自动配合和锁定盖板。