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    • 5. 发明申请
    • MULTIDIRECTIONAL PIVOTING BONE SCREW AND FIXATION SYSTEM
    • 多功能骨螺钉和固定系统
    • WO0167973A3
    • 2002-03-07
    • PCT/US0105717
    • 2001-02-23
    • SDGI HOLDINGS INCCRANDALL DENNISMORRISON MATTHEW MSTROHKIRCH TERRANCE
    • CRANDALL DENNISMORRISON MATTHEW MSTROHKIRCH TERRANCE
    • F16B35/04A61B17/58A61B17/70F16B35/06
    • A61B17/7035A61B17/7041A61B17/7049
    • A double-jointed bone bolt (1) for use in an apparatus for maintaining vertebra in a desired relationship. The apparatus has a rod (3) that extends substantially along the spine and one or more bone bolts. At least one of the bone bolts is double jointed. The double-jointed bolt has a mounting portion (42) with a hook or coarse threads to engage a vertebra, and the mounting portion is attached to a pivot post (43) in a manner that allows the pivot post to be rotatable about a common axis in respect to the mounting portion. The pivot post of the bone bolt is then pivotally attached to a connector portion (44) of the bone bolt that has machine threads upon which a surgeon may attach a clamp. (2) The clamp has a second bolt (4) and an arm. (5) The second bolt holds the rod and the arm to the clamp. The second bolt has a first channel (8) to attach to the rod, while the arm has a second channel (10) to attach the double-jointed bone bolt.
    • 一种用于在所需关系中维持椎骨的装置中的双关节骨栓(1)。 该装置具有基本上沿着脊柱和一个或多个骨螺栓延伸的杆(3)。 至少有一个骨螺栓是双重接合的。 所述双接头螺栓具有带钩或粗螺纹以与椎骨接合的安装部分(42),并且所述安装部分以允许所述枢轴柱能够绕共同的方式旋转的方式附接到枢轴柱(43) 轴相对于安装部分。 骨螺栓的枢轴柱然后枢转地附接到具有机器螺纹的骨螺栓的连接器部分(44)上,外科医生可以在其上附接夹具。 (2)夹具具有第二螺栓(4)和臂。 (5)第二个螺栓将杆和臂固定在夹具上。 第二螺栓具有附接到杆的第一通道(8),而臂具有用于附接双接头骨螺栓的第二通道(10)。