Cervical dowel and insertion tool

    公开(公告)号:US06527773B1

    公开(公告)日:2003-03-04

    申请号:US09685530

    申请日:2000-10-10

    IPC分类号: A61B1756

    摘要: 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.

    Implant Structure
    10.
    发明申请
    Implant Structure 审中-公开
    植入结构

    公开(公告)号:US20110004257A1

    公开(公告)日:2011-01-06

    申请号:US12535706

    申请日:2009-08-05

    IPC分类号: A61B17/86

    摘要: An implant structure is provided. The implant structure includes an implant body and a screw portion. The screw portion is coupled to a second surface of the implant body such that the implant structure can be implanted into an injured bone via the screw portion. Thus, the implant body partially replaces and thereby repairs the injured bone. Threads of the screw portion have at least a barb unit for preventing the implant structure from rotating in the loosening direction of the screw portion. The at least a barb unit also prevents the implant structure from loosening and displacement so that the service life of the implant structure can be extended.

    摘要翻译: 提供植入结构。 植入物结构包括植入体和螺钉部分。 螺钉部分联接到植入物主体的第二表面,使得植入物结构可以经由螺钉部分植入损伤的骨骼。 因此,植入物主体部分地替代并因此修复受损骨。 螺纹部分的螺纹具有至少一个倒钩单元,用于防止植入结构在螺钉部分的松动方向上旋转。 至少一个倒钩单元还防止植入结构松动和移位,使得植入物结构的使用寿命可以延长。