- 专利标题: Anterior lumbar plate and method
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申请号: US09696130申请日: 2000-10-25
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公开(公告)号: US06740088B1公开(公告)日: 2004-05-25
- 发明人: Jeffrey Kozak , Bradley T. Estes , Lawrence M. Boyd
- 申请人: Jeffrey Kozak , Bradley T. Estes , Lawrence M. Boyd
- 主分类号: A61F230
- IPC分类号: A61F230
摘要:
A plate of biocompatible material is provided having curvature in two planes such that it conforms to the curvature of the L5 vertebral body and to the patient's lordotic curve. Holes are provided receiving screws for anchorage in the vertebral body and sacrum. A flange or foot portion on the plate provides a wider base end area for support in the L5-S1 interspace. The foot portion is also arranged for appropriate entry angle of screws into the sacrum such as to improve anchorage in the sacrum. Anti-backout and low profile features are incorporated. The anterior lumbar plate is situated to maintain the anterior interbody bone graft in compression by resisting tensile forces during extension.
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