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    • 4. 发明申请
    • IMPLANT ASSEMBLY
    • 植物大会
    • WO2009071940A1
    • 2009-06-11
    • PCT/GB2008/051138
    • 2008-12-01
    • DePuy International LtdBISHOP, NickMOORE, GaryMORLOCK, Michael
    • BISHOP, NickMOORE, GaryMORLOCK, Michael
    • A61F2/36A61F2/40
    • A61F2/3603A61B17/1659A61B17/1668A61F2/30724A61F2/30734A61F2002/30332A61F2002/3092A61F2002/3619A61F2220/0033
    • An implant assembly comprising an implant forming one component of a joint prosthesis, the implant comprising an articulating surface and an axial cavity arranged to receive an end of a bone, the axial cavity being generally circular in cross section in a plane normal to the axis of the implant. The implant assembly further comprises a spacing element detachable from the implant. At least a portion of the interior surface of the cavity is roughened and is arranged to abrade bone when the end of the bone is received in the cavity. The spacing element is arranged to prevent the implant from fully seating on the end of the bone such that the implant and the end of the bone are in a predetermined spaced apart arrangement. A method of implanting such an implant is also disclosed. The method comprises receiving the end of a bone in the cavity; rotating the implant assembly while applying axial pressure to the implant in the direction of the bone such that bone is abraded by the roughened surface; removing the spacing element from the implant; and applying an axial impaction force to the implant until the implant is fully seated upon the end of the bone.
    • 一种植入物组件,其包括形成关节假体的一个部件的植入物,所述植入物包括铰接表面和布置成容纳骨的端部的轴向空腔,所述轴向空腔在垂直于 植入物。 植入物组件还包括可离开植入物的间隔元件。 空腔的内表面的至少一部分被粗糙化并且被布置成当骨的端部容纳在空腔中时磨损骨骼。 间隔元件布置成防止植入物完全位于骨的端部上,使得植入物和骨头的端部处于预定间隔开的布置。 还公开了一种植入这种植入物的方法。 所述方法包括在所述空腔中接收骨的末端; 旋转植入物组件,同时沿着骨的方向对植入物施加轴向压力,使得骨被粗糙表面磨损; 从所述植入物移除所述间隔元件; 以及向所述植入物施加轴向冲击力,直到所述植入物完全置于所述骨的末端。