发明名称 |
ORTHOPEDIC MIXTURES PREPARED BY SUPERCRITICAL FLUID PROCESSING TECHNIQUES |
摘要 |
Orthopedic mixtures are prepared by mixing starting materials and a process medium (16) in a reactor (12) to form a supercritical fluid slurry. The starting materials include a source of calcium ions and a polymer matrix for the calcium ions. The process medium (16) preferably is carbon dioxide, which is supplied to the reactor (12) in a supercritical state. After mixing for a period of time, the slurry either is left in the reactor (12) or is discharged into a receiving vessel (14). The process medium (16) is separated from the other materials and removed. Leaving behind a finely divided product. The finely divided product can be used as a bone implant or a bone implant can be carved from the cured product. Alternatively, if an ultraviolet light-curable catalyst and a monomer are included in the mixture, the finely divided product can be used as bone filler and cured in situ. After curing, the mixture produces a dense, strong, porous product that simulates autogenic bone. |
申请公布号 |
WO0221222(A1) |
申请公布日期 |
2002.03.14 |
申请号 |
WO2001US26448 |
申请日期 |
2001.08.24 |
申请人 |
FERRO CORPORATION |
发明人 |
MANDEL, FREDERICK, S.;WANG, J., DON;HOWDLE, STEVEN, M.;POPOV, VLADIMIR, K. |
分类号 |
A61F2/00;A61F2/28;A61F2/30;A61L27/46;C08F2/48 |
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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