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    • 5. 发明授权
    • Cervical dowel and insertion tool
    • 子宫颈钉和插入工具
    • US06733504B2
    • 2004-05-11
    • US09992473
    • 2001-11-16
    • Ching-Yi LinJo-Wen Lin
    • Ching-Yi LinJo-Wen Lin
    • A61F246
    • A61F2/4611A61F2/28A61F2/446A61F2002/2839A61F2002/30057A61F2002/30772A61F2002/30782A61F2002/30808A61F2002/3081A61F2002/3085A61F2002/30873A61F2002/4627A61F2002/4628A61F2310/00359
    • A dowel insertion tool includes a T-shaped handle and a hollow sleeve which extends distally from the T-shaped handle. A shaft extends from the handle through the hollow sleeve and includes a transverse extension. A rotatable knob having an annular channel positioned to receive the transverse extension is supported adjacent the handle. A pin is secured to the knob and extends into a helical camming channel formed in the sleeve. Upon rotation of the knob, the pin moves within the camming channel to move the knob longitudinally about the sleeve. Movement of the knob effects longitudinal movement of the shaft. A support plate is secured to the distal end of the shaft. A pair of prongs are slidably secured to the plate. Each of the prongs includes an enlarged head portion which is slidably positioned within a slot formed in the plate. A guide member is secured to the distal end of the sleeve. The guide member includes a pair of guide bores dimensioned to receive a distal end of the prongs. The guide bores direct the prongs outwardly from the distal end of the hollow sleeve at an angle to the longitudinal axis of the sleeve. The prongs are dimensioned to be received in bores formed in the trailing end of a cervical dowel. Because the prongs engage the dowel at an angle, the dowel is both rotatably and longitudinally fixed to the insertion tool.
    • 销钉插入工具包括T形手柄和从T形手柄向远侧延伸的中空套筒。 轴从手柄通过中空套筒延伸并且包括横向延伸部。 具有定位成接收横向延伸部的环形通道的旋转旋钮被支撑在手柄附近。 销被固定到旋钮并延伸到形成在套筒中的螺旋形凸轮通道中。 在旋钮旋转时,销在凸轮通道内移动,以使套筒沿套筒纵向移动。 旋钮的移动影响轴的纵向运动。 支撑板固定到轴的远端。 一对插脚可滑动地固定在板上。 每个插脚包括扩大的头部,其可滑动地定位在形成在板中的槽内。 引导构件被固定到套筒的远端。 引导构件包括一对导向孔,其尺寸设置成接收尖端的远端。 引导孔以与套筒的纵向轴线成一定角度将尖头从中空套管的远端向外直接引导。 这些插脚的尺寸被设计成被接收在形成在颈部榫尾端的孔中。 因为叉头以一定角度接合销钉,所以榫钉可旋转地并且纵向地固定到插入工具。