发明名称 |
METHOD OF BONDING A TITANIUM POROUS SURFACE TO A COBALT-BASED ALLOY SUBSTRATE IN AN ORTHOPAEDIC IMPLANT DEVICE |
摘要 |
A femoral component of a knee prosthesis, including a cobalt-based alloy substrate and a titanium fiber metal pad bonded thereto by means of an interlayer of a cobalt-based alloy including nickel. More specifically, a method of bonding a titanium porous surface to a cobalt-based alloy in an orthopaedic implant device, by first applying an interlayer of a cobalt-based alloy including nickel to the substrate and then bonding a porous structure to the interlayer. In one embodiment, an interlayer of L-605 is first applied to a substrate of Co-Cr-Mo by diffusion bonding at approximately 2200.degree. F. and then a fiber metal pad of CP-titanium is diffusion bonded to the interlayer at approximately 1650.degree. F. A layer of CP-titanium may optionally be placed intermediate the fiber metal pad and interlayer before the second diffusion step. In an alternative embodiment, MP-35N alloy may be substituted for the L-605 alloy. |
申请公布号 |
CA2051900(A1) |
申请公布日期 |
1992.06.22 |
申请号 |
CA19912051900 |
申请日期 |
1991.09.19 |
申请人 |
BRISTOL-MYERS SQUIBB COMPANY |
发明人 |
SHETTY, H. RAVINDRANATH;HELDRETH, MARK A.;PARR, JACK E. |
分类号 |
A61F2/00;A61F2/30;A61F2/38;A61L27/30;(IPC1-7):A61L27/00;B32B15/14 |
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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