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    • 3. 发明申请
    • BONE FIXATION APPARATUS
    • 骨固定装置
    • WO2003086204A2
    • 2003-10-23
    • PCT/US2003/011228
    • 2003-04-08
    • ALLEYNE, NevilleNONAKA, Makoto
    • ALLEYNE, NevilleNONAKA, Makoto
    • A61B17/00
    • A61B17/7037A61B17/7032
    • A bone fixation apparatus adapted for use in spinal stabilization. The apparatus includes a threaded bone screw having a spherical head that is received in a receiver cup. The receiver cup also includes a slot or groove through which a support rod passes. A saddle is positioned in the receiver cup below the support rod and above the head of the threaded bone screw. Alignment flanges are positioned partially around an opening on the receiver cup opposite the bone screw. A cap having internal grooves corresponding to the alignment flanges mates with the receiver cup. The cap may be positioned onto the receiver cup in a first orientation and secured to the receiver cup by rotating approximately one quarter turn. A compression member is screwed into internal threads on an opening of the cup to provide pressure on the support rod, thereby fixing the rod to the receiver cup.
    • 适用于脊柱稳定的骨固定装置。 该装置包括具有容纳在接收器杯中的球形头部的螺纹骨螺钉。 接收器杯还包括支撑杆通过的槽或槽。 鞍座位于支撑杆下方的接收器杯中并且位于螺纹骨螺钉的头部上方。 对准法兰部分地围绕与骨螺钉相对的接收杯上的开口。 具有对准于对准凸缘的内部凹槽的盖子与接收器杯配合。 帽可以以第一取向定位在接收器杯上,并通过旋转大约四分之一圈来固定到接收杯。 将压缩构件拧入杯的开口处的内螺纹中以在支撑杆上提供压力,从而将杆固定到接收杯。