Threaded pin
    1.
    发明授权
    Threaded pin 有权
    螺纹针

    公开(公告)号:US06261292B1

    公开(公告)日:2001-07-17

    申请号:US09495950

    申请日:2000-02-02

    IPC分类号: A61B1758

    摘要: The invention relates to a threaded pin for holding together pieces of a fractured bone. The pin comprises a body having a distal end and a proximal end. The distal end has a first thread presenting crests and the proximal end has a second thread presenting crests. The first thread and the second thread being spaced apart by a smooth portion. The first and second threads are such that the pitch X of the first thread and the pitch Y of the second thread both decrease from the distal end (X1, X2, Y1, Y2) towards the proximal end (Xn, Xn−1; Yn, Yn−1). The diameter d of the crests of the first thread and the diameter D of the crests of the second thread both increase from the distal end (d1, d2; D1, D2) towards the proximal end (dn, dn−1; Dn, Dn−1), and the values are such that: X1>X2>Xn−1>Xn>Y1>Y2>Yn−1>Yn and Dn>Dn−1>D2>D1>dn>dn−1>d2>d1. The invention is applicable to repairing bones.

    摘要翻译: 本发明涉及一种用于将骨折的骨块夹在一起的螺纹销。 销包括具有远端和近端的主体。 远端具有呈现顶部的第一螺纹,并且近端具有呈现波峰的第二螺纹。 第一螺纹和第二螺纹由平滑部分间隔开。 第一螺纹和第二螺纹使得第一螺纹的螺距X和第二螺纹的螺距Y从远端(X1,X2,Y1,Y2)朝向近端(Xn,Xn-1; Yn ,Yn-1)。 第一螺纹的波峰的直径d和第二螺纹的波峰的直径D都从远端(d1,d2; D1,D2)朝向近端(dn,dn-1; Dn,Dn -1),其值为:X1> X2> Xn-1> Xn> Y1> Y2> Yn-1> Yn和Dn> Dn-1> D2> D1> dn> dn-1> d2> d1 本发明适用于修复骨骼。