发明申请
US20070191841A1 Spinal rods having different flexural rigidities about different axes and methods of use
审中-公开
具有不同轴的不同弯曲刚性的脊柱和使用方法
- 专利标题： Spinal rods having different flexural rigidities about different axes and methods of use
- 专利标题（中）： 具有不同轴的不同弯曲刚性的脊柱和使用方法
-
申请号： US11342195申请日： 2006-01-27
-
公开(公告)号： US20070191841A1公开(公告)日： 2007-08-16
- 发明人: Jeff Justis , Fred Molz , Michael Sherman
- 申请人： Jeff Justis , Fred Molz , Michael Sherman
- 专利权人： SDGI Holdings, Inc.
- 当前专利权人： SDGI Holdings, Inc.
- 主分类号： A61F2/30
- IPC分类号： A61F2/30
摘要：
A vertebral rod has an elongated body extending along a longitudinal axis. The rod also includes a cavity extending the length of the body. Either the body or the cavity may have an asymmetrical shape about a centroid in a plane perpendicular to the longitudinal axis. Alternatively, both may have the symmetrical shape about the centroid. The body of the rod may be bounded by an exterior surface and the cavity. The body has a first bending axis that is perpendicular to longitudinal axis. The body also has a second bending axis that is perpendicular to the longitudinal axis and to the first bending axis. The body of the rod may be distributed asymmetrically about the first and second bending axes. Also, the rod may have a different bending stiffness about the first and second bending axes.