Endoprosthesis for a hip-joint socket
    7.
    发明授权
    Endoprosthesis for a hip-joint socket 失效
    髋关节插座内置假体

    公开(公告)号:US4894064A

    公开(公告)日:1990-01-16

    申请号:US267314

    申请日:1988-11-04

    申请人: Martin Imhof

    发明人: Martin Imhof

    IPC分类号: A61F2/00 A61F2/30 A61F2/34

    摘要: A shell sleeve serves for the reception of a bearing socket. The shell sleeve possesses the shape of a body of revolution or rotation which tapers or narrows towards a pole region. This body of revolution carries at its outer surface a self-tapping thread. To facilitate threading-in of the shell sleeve into the bone substance or material and to preclude, during such threading-in operation, the application of forces which would cause any pressure and splintering action upon the bone substance or material, the thread comprises a flat thread. This flat thread has flanks dispositioned at essentially right angles to the lengthwise axis of the body of revolution and the spacing from thread flight to thread flight is constant. The portions of the thread flights which follow a related cutter or cutting surface thereof are undercut or machined back.

    摘要翻译: 壳套用于接收轴承座。 壳套具有向极区逐渐变窄或变窄的旋转体或旋转体的形状。 这个革命体在其外表面带有一个自攻螺纹。 为了促进壳套管进入骨物质或材料,并且在这种穿线操作期间阻止施加将对骨物质或材料造成任何压力和碎裂作用的力,螺纹包括平面 线。 该扁平螺纹具有基本上与旋转体的纵向轴线成直角的侧面,并且从螺纹飞行到螺纹螺纹的间隔是恒定的。 沿着相关切割器或切割表面的螺纹线的部分被切削或机加工。