公开(公告)号：US09827019B2

公开(公告)日：2017-11-28

申请号：US14969090

申请日：2015-12-15

申请人： Wei Yuanfang ,  GUANGDONG NO. 2 PROVICIAL PEOPLE'S HOSPITAL

发明人： Li Guitao

IPC分类号： A61B17/70

CPC分类号： A61B17/7037

摘要： A socket rail pedicle screw includes a fixator, a spherical head screw pivotally disposed at a bottom of the fixator and a retention screw cap. The fixator has a circular sidewall and a though hole. A pair of U-shaped grooves is defined on a top portion of the circular sidewall and a pair of locating steps is internally extended from an inner wall of a bottom portion of the circular sidewall and below the U-shaped grooves. The spherical head screw includes a bolt and a pair of diametrically faced socket rails. Each socket rail is constructed by a second top wall and a corresponding second sidewall extended from the second top wall to the bottom of the head. The second top wall is vertically pressed against the first top wall, both of the first and second sidewalls are arced, and a gap is defined between the first and second sidewall.

公开(公告)号：US20160296257A1

公开(公告)日：2016-10-13

申请号：US14969090

申请日：2015-12-15

申请人： Wei Yuanfang ,  GUANGDONG NO. 2 PROVICIAL PEOPLE'S HOSPITAL

发明人： Li Guitao

IPC分类号： A61B17/70

CPC分类号： A61B17/7037

摘要： A socket rail pedicle screw includes a fixator, a spherical head screw pivotally disposed at a bottom of the fixator and a retention screw cap. The fixator has a circular sidewall and a though hole. A pair of U-shaped grooves is defined on a top portion of the circular sidewall and a pair of locating steps is internally extended from an inner wall of a bottom portion of the circular sidewall and below the U-shaped grooves. The spherical head screw includes a bolt and a pair of diametrically faced socket rails. Each socket rail is constructed by a second top wall and a corresponding second sidewall extended from the second top wall to the bottom of the head. The second top wall is vertically pressed against the first top wall, both of the first and second sidewalls are arced, and a gap is defined between the first and second sidewall.

摘要翻译： 插座轨道椎弓根螺钉包括固定器，枢转地设置在固定器底部的球形头部螺钉和保持螺钉盖。 固定器具有圆形侧壁和通孔。 一对U形槽限定在圆形侧壁的顶部上，并且一对定位步骤从圆形侧壁的底部的内壁和U形槽的下方内部延伸。 球形头螺钉包括螺栓和一对直径方面的插座轨道。 每个插座导轨由第二顶壁和从第二顶壁延伸到头部底部的对应的第二侧壁构成。 第二顶壁垂直压靠在第一顶壁上，第一和第二侧壁都被弧形，并且在第一和第二侧壁之间限定间隙。