发明授权
- 专利标题： Low wear ball and cup joint prosthesis
- 专利标题（中）： 低磨球和杯关节假体
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申请号： US66389申请日： 1998-08-03
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公开(公告)号： US6059830A公开(公告)日： 2000-05-09
- 发明人: Albert L. Lippincott, III , John B. Medley
- 申请人： Albert L. Lippincott, III , John B. Medley
- 申请人地址： TN Arlington
- 专利权人： Wright Medical Technology, Inc.
- 当前专利权人： Wright Medical Technology, Inc.
- 当前专利权人地址： TN Arlington
- 主分类号： A61F2/00
- IPC分类号： A61F2/00 ; A61F2/30 ; A61F2/32 ; A61F2/34 ; A61F2/36 ; A61F2/46
摘要：
A ball (14) and cup (18) prosthesis is provided with articulating metal surfaces (25, 24), the surfaces (25, 24) having an area of intimate contact (.theta.) in which the surfaces (25, 24) are formed on radii (R.sub.3, R.sub.1) which differ by at most 50 micrometers. The area of intimate contact (.theta.) has a surface area that ranges from 0.12 .pi.R.sub.3.sup.2 to 1.65 .pi.R.sub.3.sup.2, and the centerline average surface roughness of the metal articulating surfaces (25, 24) in the area of intimate contact (.theta.) preferably is not greater than 0.1 micrometers.
公开/授权文献
- US4765006A Enclosure for converting a bed into a play area 公开/授权日：1988-08-23
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