发明授权
- 专利标题： Melt-irradiated ultra high molecular weight polyethylene prosthetic devices
- 专利标题（中）： 熔融辐射超高分子量聚乙烯假体装置
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申请号： US600744申请日： 1996-02-13
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公开(公告)号： US5879400A公开(公告)日： 1999-03-09
- 发明人: Edward W. Merrill , William H. Harris , Premnath Venugopalan , Murali Jasty , Charles R. Bragdon , Daniel O. O'Connor
- 申请人： Edward W. Merrill , William H. Harris , Premnath Venugopalan , Murali Jasty , Charles R. Bragdon , Daniel O. O'Connor
- 申请人地址： MA Cambridge MA Boston
- 专利权人： Massachusetts Institute of Technology,The General Hospital Corporation
- 当前专利权人： Massachusetts Institute of Technology,The General Hospital Corporation
- 当前专利权人地址： MA Cambridge MA Boston
- 主分类号： A61F2/00
- IPC分类号： A61F2/00 ; A61F2/30 ; A61F2/32 ; A61F2/34 ; A61F2/36 ; A61F2/46 ; A61L27/16 ; B29C35/08 ; B29C43/00 ; B29C43/16 ; C08F110/02
摘要：
A medical prosthesis for use within the body which is formed of ultra high molecular weight polyethylene which has a polymeric structure with less than about 50% crystallinity, less than about 290 .ANG. lamellar thickness and less than about 940 MPa tensile elastic modulus, so as to reduce production of fine particles from the prosthesis during wear of the prosthesis, is described. Methods of manufacture of such devices and material used therein are also provided.
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