公开(公告)号：US5899902A

公开(公告)日：1999-05-04

申请号：US887832

申请日：1997-07-03

申请人： Henry John Harding Brown ,  John Mark Kapitan ,  Gerald Kotnik ,  Marcus Maria Sanders

发明人： Henry John Harding Brown ,  John Mark Kapitan ,  Gerald Kotnik ,  Marcus Maria Sanders

IPC分类号： A61B17/58 ,  A61B17/70 ,  A61B17/86 ,  A61B17/88

CPC分类号： A61B17/8883 ,  A61B17/862 ,  A61B17/7041

摘要： An improved fastener is provided for use in retaining vertebrae in a desired spatial relationship. The fastener has a mounting section with a first external thread to engage a vertebra. The fastener has a retaining section with a second external thread to engage an internal thread on a retaining element, such as a nut. A pair of parallel flats are formed on opposite sides of the retaining section. The flats are spaced apart by a distance which is substantially the same as or greater than a root diameter of the external thread on the retaining section. A driving recess in an axially outer end of the retaining section has arcuate corner portions which receive force to effect rotation of the fastener relative to a vertebra engaged by the mounting section. The arcuate corner portions of the driving recess are offset from a plane containing the longitudinal central axis of the retaining section and extending perpendicular to the flats.

摘要翻译： 提供改进的紧固件用于将椎骨保持在期望的空间关系中。 紧固件具有带有第一外螺纹以与椎骨接合的安装部分。 紧固件具有带有第二外螺纹的保持部分，以与保持元件（例如螺母）上的内螺纹接合。 一对平行的平面形成在保持部分的相对侧上。 平面间隔一定距离，该距离基本上与保持部分上的外螺纹的根直径相同或更大。 在保持部分的轴向外端中的驱动凹部具有弧形角部，其接收力以实现紧固件相对于由安装部分接合的椎骨的旋转。 驱动凹部的弧形角部分从包含保持部分的纵向中心轴线的平面偏移并垂直于平面延伸。

公开(公告)号：US6039738A

公开(公告)日：2000-03-21

申请号：US186567

申请日：1998-11-05

申请人： Marcus Maria Sanders ,  John Mark Kapitan ,  Henry John Harding Brown

发明人： Marcus Maria Sanders ,  John Mark Kapitan ,  Henry John Harding Brown

IPC分类号： A61B17/58 ,  A61B17/70 ,  A61B17/86 ,  A61B17/88

CPC分类号： A61B17/8883 ,  A61B17/862 ,  A61B17/7041

摘要： An improved fastener is provided for use in retaining vertebrae in a desired spatial relationship. The fastener has a mounting section with a first external thread to engage a vertebra. The fastener has a retaining section with a second external thread to engage an internal thread on a retaining element, such as a nut. A circular intermediate section interconnects the mounting and retaining sections of the fastener. A plurality of spaced apart recesses are formed in the intermediate section. Each of these recesses has a surface for receiving force to rotate the fastener relative to a vertebra. The circular intermediate section may include an annular end surface which faces toward a retaining section and a cylindrical outer side surface. Each of the recesses has an opening which extends from the annular end surface into the cylindrical side surface.

摘要翻译： 提供改进的紧固件用于将椎骨保持在期望的空间关系中。 紧固件具有带有第一外螺纹以与椎骨接合的安装部分。 紧固件具有带有第二外螺纹的保持部分，以与保持元件（例如螺母）上的内螺纹接合。 圆形中间部分将紧固件的安装部分和保持部分相互连接。 在中间部分中形成有多个间隔开的凹部。 这些凹部中的每一个具有用于接收力以相对于椎骨旋转紧固件的力的表面。 圆形中间部分可以包括面向保持部分和圆柱形外侧表面的环形端表面。 每个凹部具有从环形端面延伸到圆筒形侧面的开口。