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    KNOCHENSCHRAUBE
    3.
    发明公开
    KNOCHENSCHRAUBE 有权

    公开(公告)号：EP1210019A1

    公开(公告)日：2002-06-05

    申请号：EP99939893.6

    申请日：1999-09-08

    申请人： SYNTHES AG Chur

    发明人： REYNDERS, Piet ,  BERGER, Roger

    IPC分类号： A61B17/86

    CPC分类号： A61B17/864 ,  A61B17/7098 ,  A61B17/74

    摘要： The invention relates to a bone screw that is provided with a head (1), a shaft (2), a central longitudinal axis (3), a screw point (4), a surface area (5) an external thread (6) and an entire length (L). A bore (7) that is open in the direction towards the head (1) and extends coaxially in relation to the longitudinal axis (3) is provided. Said bore is connected to the surface area (5) via at least one channel (8) which extends crosswise in relation to the longitudinal axis (3). The bore reaches the outside in the form of at least one perforation (9) through the surface area (5) and is closed in the direction towards the screw point (4). The advantage of the bone screw is that osteocementum can be introduced into the adjacent bone in such a way that an artificial coaxial cement bed for the thread of the bone screw is embodied. The cement bed is only laterally adjacent to the screw such that said screw can be axially screwed further into the forward direction even after the osteocementum has hardened.

    摘要翻译： 本发明涉及一种具有头部（1），轴（2），中心纵轴线（3），螺钉尖端（4），表面区域（5）和外螺纹（6）的骨螺钉， 和整个长度（L）。 提供朝朝向头部（1）的方向开口并且相对于纵向轴线（3）同轴延伸的孔（7）。 所述孔经由至少一个相对于纵向轴线（3）横向延伸的通道（8）连接到表面区域（5）。 该孔以穿过表面区域（5）的至少一个穿孔（9）的形式到达外部并且朝向螺钉尖端（4）的方向闭合。 骨螺钉的优点在于骨水泥可以以这样的方式引入相邻的骨中，即骨螺钉的螺纹的人造同轴水泥床被实施。 水泥床仅在侧向邻近螺钉，使得即使在骨水泥硬化之后，所述螺钉也可沿轴向进一步轴向拧入。