发明授权
- 专利标题： Antioxidant stabilized crosslinked ultra-high molecular weight polyethylene for medical device applications
- 专利标题（中）： 用于医疗器械应用的抗氧化稳定的交联超高分子量聚乙烯
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申请号： US14157708申请日： 2014-01-17
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公开(公告)号： US09265545B2公开(公告)日： 2016-02-23
- 发明人: Alicia Rufner , John Knight , Toni Rowe , Dirk Pletcher , Ray Gsell , Hallie E Brinkerhuff , Werner Schneider
- 申请人： Zimmer, Inc.
- 申请人地址： US IN Warsaw
- 专利权人： Zimmer, Inc.
- 当前专利权人： Zimmer, Inc.
- 当前专利权人地址： US IN Warsaw
- 代理机构： Schwegman Lundberg & Woessner, P.A.
- 主分类号： A61L27/16
- IPC分类号： A61L27/16 ; A61B17/80 ; A61L27/50 ; C08L23/06
摘要：
An antioxidant combined with UHMWPE prior to subjecting the UHMWPE to crosslinking irradiation. In one exemplary embodiment, the antioxidant is tocopherol. After the antioxidant is combined with the UHMWPE, the resulting blend may be formed into slabs, bar stock, and/or incorporated into a substrate, such as a metal, for example. The resulting product may then be subjected to crosslinking irradiation. In one exemplary embodiment, the UHMWPE blend is preheated prior to subjecting the same to crosslinking irradiation. Once irradiated, the UHMWPE blended product may be machined, packaged, and sterilized in accordance with conventional techniques.
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