公开(公告)号：US08394132B2

公开(公告)日：2013-03-12

申请号：US12283777

申请日：2008-09-16

申请人： Derek S. Lewis ,  Deepa Mani ,  David B. Kay ,  Amanda Martin

发明人： Derek S. Lewis ,  Deepa Mani ,  David B. Kay ,  Amanda Martin

IPC分类号： A61B17/58

CPC分类号： A61B17/8635 ,  A61B17/8605 ,  A61B17/864

摘要： A cannulated compression screw is used as an orthopedic implant and has a threaded distal end with an insertion tip that includes at least one and preferably two, three or four flutes to allow the screw to be self-tapping. Optionally, the screw also includes one or more reverse cutting flutes proximal to the insertion tip. The distal threads are cancellous threads having a generally constant minor diameter and a generally constant major diameter and a generally constant thread pitch. An intermediate portion of the screw is non-threaded and the proximal end includes a compression wedge or taper that has at least one, and preferably two to five flutes that terminate before the top of the screw. The proximal end further includes a radiused bevel to the terminal surface that includes a hexagonal torque driving recess. The diameter of the non-threaded shaft section is constant distal from the compression wedge to the distal tip where it defines the minor diameter of the threaded portion. The screw optionally includes a tapered insertion tip.

摘要翻译： 插管式压缩螺钉用作矫形植入物，并且具有螺纹远端，其具有插入末端，所述插入末端包括至少一个，优选两个，三个或四个凹槽，以允许螺钉自攻。 可选地，螺钉还包括靠近插入尖端的一个或多个反向切割凹槽。 远端螺纹是具有通常恒定的小直径和大致恒定的大直径和大致恒定的螺距的松质线。 螺钉的中间部分是非螺纹的，并且近端包括压缩楔形或锥形，其具有在螺钉的顶部之前终止的至少一个，优选地两至五个凹槽。 近端还包括包括六角扭矩驱动凹部的端子表面的圆弧形斜面。 非螺纹轴部分的直径从压缩楔到远侧末端是恒定的，其中它限定螺纹部分的小直径。 螺杆可选地包括锥形插入尖端。

公开(公告)号：US20100069970A1

公开(公告)日：2010-03-18

申请号：US12283777

申请日：2008-09-16

申请人： Derek S. Lewis ,  Deepa Mani ,  David B. Kay ,  Amanda Martin

发明人： Derek S. Lewis ,  Deepa Mani ,  David B. Kay ,  Amanda Martin

IPC分类号： A61B17/04 ,  A61B17/00

CPC分类号： A61B17/8635 ,  A61B17/8605 ,  A61B17/864

摘要： A cannulated compression screw is used as an orthopedic implant and has a threaded distal end with an insertion tip that includes at least one and preferably two, three or four flutes to allow the screw to be self-tapping. Optionally, the screw also includes one or more reverse cutting flutes proximal to the insertion tip. The distal threads are cancellous threads having a generally constant minor diameter and a generally constant major diameter and a generally constant thread pitch. An intermediate portion of the screw is non-threaded and the proximal end includes a compression wedge or taper that has at least one, and preferably two to five flutes that terminate before the top of the screw. The proximal end further includes a radiused bevel to the terminal surface that includes a hexagonal torque driving recess. The diameter of the non-threaded shaft section is constant distal from the compression wedge to the distal tip where it defines the minor diameter of the threaded portion. The screw optionally includes a tapered insertion tip.

摘要翻译： 插管式压缩螺钉用作矫形植入物，并且具有螺纹远端，其具有插入末端，所述插入末端包括至少一个，优选两个，三个或四个凹槽，以允许螺钉自攻。 可选地，螺钉还包括靠近插入尖端的一个或多个反向切割凹槽。 远端螺纹是具有通常恒定的小直径和大致恒定的大直径和大致恒定的螺距的松质线。 螺钉的中间部分是非螺纹的，并且近端包括压缩楔形或锥形，其具有在螺钉的顶部之前终止的至少一个，优选地两至五个凹槽。 近端还包括包括六角扭矩驱动凹部的端子表面的圆弧形斜面。 非螺纹轴部分的直径从压缩楔到远侧末端是恒定的，其中它限定螺纹部分的小直径。 螺杆可选地包括锥形插入尖端。