发明授权
- 专利标题: Method and instrumentation for performing minimally invasive hip arthroplasty
- 专利标题(中): 用于进行微创髋关节置换术的方法和仪器
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申请号: US10912644申请日: 2004-08-05
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公开(公告)号: US07833228B1公开(公告)日: 2010-11-16
- 发明人: Troy W. Hershberger
- 申请人: Troy W. Hershberger
- 申请人地址: US IN Warsaw
- 专利权人: Biomet Manufacturing Corp.
- 当前专利权人: Biomet Manufacturing Corp.
- 当前专利权人地址: US IN Warsaw
- 代理商 William F. Bahret
- 主分类号: A61B17/00
- IPC分类号: A61B17/00
摘要:
A broach instrument for preparing the proximal medullary canal of a femur for receiving a hip stem implant includes lateral and medial broach segments that may be assembled and disassembled along a longitudinal plane of separation defined by longitudinal sliding surfaces. A respective longitudinal shaft is connected to a proximal end of each broach segment. Each longitudinal shaft has a respective impact head connected to a respective proximal end. The broach segments and/or shafts positively engage one another to resist lateral separation of the broach segments. Each broach segment may be inserted separately and sequentially through a minimal posterior incision and through the gluteus maximus and then be assembled within the patient for broaching.
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