发明授权
- 专利标题: Facet interference screw
- 专利标题(中): 方面干涉螺丝
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申请号: US12920340申请日: 2009-03-05
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公开(公告)号: US08696708B2公开(公告)日: 2014-04-15
- 发明人: Beat Lechmann , Paul W. Pavlov , Silas Zurschmiede
- 申请人: Beat Lechmann , Paul W. Pavlov , Silas Zurschmiede
- 申请人地址: US MA Raynham
- 专利权人: DePuy Synthes Products, LLC
- 当前专利权人: DePuy Synthes Products, LLC
- 当前专利权人地址: US MA Raynham
- 代理机构: Baker & Hostetler LLP
- 国际申请: PCT/US2009/036175 WO 20090305
- 国际公布: WO2009/111632 WO 20090911
- 主分类号: A61B17/70
- IPC分类号: A61B17/70
摘要:
A facet interference screw (10) for insertion between the facet joints of adjacent superior and inferior vertebrae includes an externally threaded shaft portion and a head. The facet interference screw is preferably split into first (20) and second (30) components, each including an outer, semicircular externally threaded surface (22, 32) so that when coupled together the semicircular externally threaded surfaces form the externally threaded shaft portion. The inner surfaces (24, 34) of the first and second components may include curved contacting surfaces so that when inserted, the first component is movable with respect to the second component. Alternatively, the screw may include a damping component (60a′) between the inner surfaces of the first and second components to facilitate damping of the first and second components with respect to one another. The damping component preferably also facilitates articulated motion of the first and second components.
公开/授权文献
- US20110004247A1 FACET INTERFERENCE SCREW 公开/授权日:2011-01-06