发明名称 |
ACETABULAR CUP BODY PROSTHESIS |
摘要 |
An improved acetabular cup prosthesis (10) has a cup body with inner convex and outer concave surfaces (12 and 15). The cup body has an apex (21) and a base (14) that defines a plane. The cup body outer convex surface (12) has a curved annular portion (13) between the base (14) and the transition. In one embodiment, the outer convex surfac e (12) is a curved annular surface extending in between the rim and a distance about two fifths to three fifths of the distance between the rim and the apex. In another embodiment, a plurality of cup bodies are provided in a range of sizes between about 40 mm and 80 mm. Each cup bod y has a companion rotary reamer that is correspondingly shaped. The companion cup body is oversized between 1mm and 3mm so that a generally constant change in volume is provided for all cup sizes between 40 mm and 80 mm.
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申请公布号 |
CA2268735(C) |
申请公布日期 |
2006.03.21 |
申请号 |
CA19972268735 |
申请日期 |
1997.05.23 |
申请人 |
SMITH & NEPHEW, INC. |
发明人 |
EVANS, DAVID L.;RIES, MICHAEL D.;MILLER, STEVE;AUSTIN, BRIAN;SHEA, JEFF |
分类号 |
A61F2/32;A61F2/34;A61B17/16;A61F2/00;A61F2/30 |
主分类号 |
A61F2/32 |
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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