发明公开
- 专利标题: Coated load bearing surface for a prosthetic joint
- 专利标题(中): 涂覆承载表面用于假体关节
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申请号: EP98301709.6申请日: 1998-03-09
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公开(公告)号: EP0864303A3公开(公告)日: 1999-06-16
- 发明人: Matthews, Frank D.
- 申请人: Johnson & Johnson Professional, Inc.
- 申请人地址: 325 Paramount Drive Raynham, Massachusetts 02767 US
- 专利权人: Johnson & Johnson Professional, Inc.
- 当前专利权人: Johnson & Johnson Professional, Inc.
- 当前专利权人地址: 325 Paramount Drive Raynham, Massachusetts 02767 US
- 代理机构: Fisher, Adrian John
- 优先权: US814265 19970310
- 主分类号: A61F2/36
- IPC分类号: A61F2/36 ; A61F2/30 ; A61L27/00
摘要:
A prosthetic hip joint includes a ceramic hip head having a bore which defines a surface, wherein the bore surface has a layer of malleable material disposed on at least a portion thereof. The surface of the bore includes surface imperfections in the form of peaks and valleys. The prosthetic hip joint can also include a femoral component having a trunnion with a tapered surface adapted for friction fit insertion into the bore of the hip head. The layer of material, such as pure titanium, distributes a load on the joint reducing localized stress points produced by opposing asperity peaks in the load-bearing surfaces of the bore and trunnion.
公开/授权文献
- EP0864303B1 Coated load bearing surface for a prosthetic joint 公开/授权日:2003-06-11
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