| 发明名称 | Bone screw | ||
| 摘要 | A bone screw including a main body portion having a proximal end and a distal end. An external threaded surface and an internal threaded surface are formed on the main body portion. The external threaded surface intersects the internal threaded surface proximate a lower surface of the external threaded surface and a lower surface of the internal threaded surface. A plurality of bone growth apertures is defined on the surface of the main body portion where the external threaded surface and the internal threaded surface are not located. The bone growth apertures comprise between about 10 percent and about 60 percent of the surface of the main body portion. | ||
| 申请公布号 | US8900279(B2) | 申请公布日期 | 2014.12.02 |
| 申请号 | US201213493186 | 申请日期 | 2012.06.11 |
| 申请人 | Zyga Technology, Inc. | 发明人 | Assell Robert L.;Beaubien Brian P.;Carr Jeremy Thomas |
| 分类号 | A61B17/04;A61B17/86;A61F2/08;A61B17/88 | 主分类号 | A61B17/04 |
| 代理机构 | Dicke, Billig & Czaja, PLLC | 代理人 | Dicke, Billig & Czaja, PLLC |
| 主权项 | 1. A bone screw comprising a main body portion having a proximal end and a distal end, wherein an external threaded surface and an internal threaded surface are formed on the main body portion, wherein the external threaded surface intersects the internal threaded surface proximate a lower surface of the external threaded surface and a lower surface of the internal threaded surface, wherein a plurality of bone growth apertures is defined on a surface of the main body portion where the external threaded surface and the internal threaded surface are not located and wherein the bone growth apertures comprise between about 10 percent and about 60 percent of the surface of the main body portion, and further comprising a head portion attached to the main body portion proximate the proximal end, wherein the head portion has an outer diameter that is greater than an outer diameter of the external threaded portion. | ||
| 地址 | Minnetonka MN US | ||