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    • 9. 发明公开
    • Self-tapping screw for small-bone surgery
    • 用于小骨手术的自攻螺钉
    • EP1273273A2
    • 2003-01-08
    • EP02291642.3
    • 2002-07-01
    • Depuy FranceBarouk, Louis Samuel
    • Weil, Lowell ScottBarouk, Louis SamuelSouillat, Thierry
    • A61B17/86
    • A61B17/863A61B17/8635A61B17/864
    • Self-tapping screw for small-bone surgery, comprising a threaded proximal head (2), a threaded distal shank with greater pitch and an internal cannula (4), characterized in that the distal shank (3) is threaded over its entire length in that the end of the shank has, apart from milled portions forming self-tapping faces on the first distal threads, at least two milled faces and which with the cannula, determine at least two notches (11), and at least two self-boring edges at the distal end of the screw, and in that the thread of the head has, aside from milled portions forming self-tapping faces on the first threads of the proximal screw thread, chamfered faces (16-19), determining boring edges (12b-15b) preceded by a short groove.
    • 一种用于小骨手术的自攻螺钉,包括带螺纹的近端头部(2),具有较大螺距的带螺纹的远端柄部和内部套管(4),其特征在于,远侧柄部(3)在其整个长度上 除了在第一远端螺纹上形成自攻面的铣削部分之外,柄的端部还具有至少两个铣削面并且与套管一起确定至少两个凹口(11)以及至少两个自钻孔 并且除了在近端螺纹的第一螺纹上形成自攻表面的铣削部分之外,头部的螺纹具有倒角面(16-19),确定钻孔边缘( 12b-15b)之前有一个短沟槽。