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1. 发明申请

US20090318970A1 Spinal Rod Connectors Configured to Retain Spinal Rods of Varying Diameters 审中-公开
标题翻译：脊柱连接器配置为保留不同直径的脊柱
公开(公告)号：US20090318970A1
公开(公告)日：2009-12-24
申请号：US12487794
申请日：2009-06-19
申请人： Michael S. Butler , Thomas J. Wegrzyn III
发明人： Michael S. Butler , Thomas J. Wegrzyn III
IPC分类号： A61B17/70
CPC分类号： A61B17/7032 , A61B17/7035
摘要： A spinal rod connector is configured to accommodate a range of spinal rod diameters. The present spinal rod connector may take the form of a spinal rod screw head, hook, spinal rod connector or a spinal rod holder. The spinal rod connector has spinal rod reception slots whose sides narrow towards a bottom of the slot. The narrowing of the sides provides a wedging effect such that a spinal rod is wedged into place during locking. The narrowing sides of the slots thus provide for the accommodation of varying rod diameters. The spinal connector also provides significant improvement in spinal rod torsional resistance compared to prior art radial shaped slots. In one form, the spinal rod reception slots are essentially V-shaped. However, other shapes following the principles of the present invention may be used and are contemplated. The width of the slot sides and the rate of curvature of the slot sides thus determine the range of spinal rod diameters that are accommodated by the spinal rod reception slots and therefore the spinal rod connector.
摘要翻译：脊椎杆连接器被配置成适应一定范围的脊柱杆直径。目前的脊柱杆连接器可采取脊柱杆螺钉头，钩，脊柱杆连接器或脊柱杆支架的形式。脊柱杆连接器具有脊侧杆接收狭槽，其侧面朝向槽的底部变窄。侧面的变窄提供楔形效果，使得在锁定期间脊椎杆楔入就位。狭槽的狭窄侧面因此提供适应不同杆直径。与现有技术的径向形状的狭槽相比，脊椎连接器还提供了脊椎杆扭转阻力的显着改善。在一种形式中，脊柱杆接收槽基本上是V形的。然而，可以使用遵循本发明的原理的其他形状并且被设想。狭槽侧的宽度和槽侧的曲率的速率因此决定了由脊柱杆接收槽和因此脊椎杆连接器容纳的脊柱杆直径的范围。

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