发明授权
- 专利标题: Pedicle screw constructs for spine fixation systems
- 专利标题(中): 脊柱固定系统的椎弓根螺钉构造
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申请号: US11829814申请日: 2007-07-27
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公开(公告)号: US08092494B2公开(公告)日: 2012-01-10
- 发明人: Michael S. Butler , Jim A. Youssef , Alan S. Hilibrand
- 申请人: Michael S. Butler , Jim A. Youssef , Alan S. Hilibrand
- 申请人地址: US IL Hoffman Estates
- 专利权人: Life Spine, Inc.
- 当前专利权人: Life Spine, Inc.
- 当前专利权人地址: US IL Hoffman Estates
- 代理机构: Foley & Lardner LLP
- 主分类号: A61B17/70
- IPC分类号: A61B17/70
摘要:
A pedicle screw coupling construct for a pedicle screw construct provides fixation of angular orientation thereof relative to a pedicle screw independent of fixation of a received spinal rod to the coupling construct. The pedicle screw construct forms one component or element in a spinal fixation system. The independent fixation coupling construct also provides for fixation of the angular orientation of the coupling construct while the coupling construct has received the spinal rod. In another form, a coupling head or construct is configured to allow a pedicle screw shaft to pass therethrough but retain the pedicle screw head for rotation of the coupling head about the pedicle screw head. The coupling head or construct is also configured to allow at least a 45° arc of pivot or articulation about a pedicle screw shaft relative to a longitudinal axis of a spinal rod received in the body. This allows the head with a received spinal rod to fold, bend or pivot relative to the pedicle screw shaft, particularly to a greater degree than the prior art.
公开/授权文献
- US20080021473A1 PEDICLE SCREW CONSTRUCTS FOR SPINE FIXATION SYSTETMS 公开/授权日:2008-01-24
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