发明名称 |
Prosthesis for knee replacement |
摘要 |
The prosthesis comprises a femoral component (2) having at least one substantially spheroidal condylar bearing surface (10, 11), a tibial component (6) including a tibial platform (20), and a plastics meniscal component (7) located between the condylar bearing surface (10,11) and the tibial component (6) and being slidable on the platform (20). The meniscal component (7) is retained on a guide (23) upstanding from the platform (20). The guide (23) includes a post (24) and a cap (25) which is a snap-fit in a recess (30) in the meniscal component (7). The guide (23) is slidable in a track (32) within the meniscal component (7) so that movement of the meniscal component (7) in the anterior/posterior direction (A-P) is limited by impingement of the meniscal component (7) on the post (24) and/or on a rail member (21) projecting from the surface of the tibial platform (20). To install the prosthesis, a femur (1) is resected to provide a base for receiving the femoral component (2), which is retained in the resected femur by pins (3). The tibia (4) is resected to provide a flat base into which the tibial component (6) is fixed by a stem (5).
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申请公布号 |
EP0864306(A2) |
申请公布日期 |
1998.09.16 |
申请号 |
EP19980301805 |
申请日期 |
1998.03.11 |
申请人 |
ZIMMER LTD;INSALL, JOHN NEVIL;WALKER, PETER STANLEY |
发明人 |
WALKER, PETER STANLEY;INSALL, JOHN NEVIL;BLAMEY, JONATHAN;WADCOCK, MICHAEL |
分类号 |
A61F2/00;A61F2/30;A61F2/38;(IPC1-7):A61F2/64 |
主分类号 |
A61F2/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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