Orthopaedic bearing material
    1.
    发明授权
    Orthopaedic bearing material 有权
    矫形轴承材料

    公开(公告)号:US08343230B2

    公开(公告)日:2013-01-01

    申请号:US11232594

    申请日:2005-09-22

    申请人: Mark D. Hanes

    发明人: Mark D. Hanes

    IPC分类号: A61F2/28 F16C33/00

    摘要: Disclosed is a polymeric orthopaedic bearing material for use as an implant material or part thereof comprising one or more crosslinked regions and one or more non-crosslinked or substantially non-crosslinked regions at the surface. The bearing material can be prepared from a crosslinkable polymer, e.g., ultrahigh molecular weight polyethylene. The orthopaedic bearing material has an advantageous combination of at least one wear property and at least one mechanical property. Also disclosed are processes for producing orthopaedic bearing materials, for example, by irradiating a raw material in consolidated form through a radiation mask having a perforated pattern for crosslinking selected regions of the raw material, and optionally shaping the raw material into a bearing material. Alternatively, a pulsed radiation beam can be used for crosslinking.

    摘要翻译: 公开了一种用作植入材料或其部分的聚合物矫形轴承材料,其包含在表面处的一个或多个交联区域和一个或多个非交联或基本上未交联的区域。 轴承材料可以由可交联聚合物例如超高分子量聚乙烯制备。 矫形轴承材料具有至少一种磨损性能和至少一种机械性能的有利组合。 还公开了用于生产矫形轴承材料的方法,例如通过用具有用于交联原料的选定区域的穿孔图案的辐射掩模照射固结形式的原料,以及任选地将原材料成型为轴承材料。 或者,脉冲辐射束可用于交联。

    Polymer blend clarity
    6.
    发明授权
    Polymer blend clarity 失效
    聚合物混合透明度

    公开(公告)号:US6040382A

    公开(公告)日:2000-03-21

    申请号:US192334

    申请日:1994-02-04

    申请人: Mark D. Hanes

    发明人: Mark D. Hanes

    CPC分类号: C08L35/06 C08L53/02 C08L25/16

    摘要: Optical clarity is improved in blends of two transparent immiscible polymers by addition of a third polymer which is selectively miscible with one of the two original immiscible polymers. The ratio of amounts of the third polymer and the one original polymer with which it is miscible is adjusted to achieve a resultant refractive index close to the refractive index of the other of the two original immiscible polymers. Alternatively, if particular amounts of the third polymer and the original polymer with which it is miscible are desired, then the other of the two immiscible polymers is chosen to be one having a refractive index close to the resultant refractive index of the two miscible polymers. One particular blend system in which optical clarity is improved by use of the methods of this invention is a blend comprising: (a) a resinous monovinyl aromatic-conjugated diene copolymer; (b) a styrene-maleic anhydride copolymer; and (c) poly(alpha-methylstyrene).

    摘要翻译: 通过添加与两种原始不混溶聚合物之一选择性混溶的第三种聚合物,两种透明不混溶聚合物的共混物的光学透明度得到改善。 调节第三聚合物和与其混溶的一种原始聚合物的量的比例,以获得接近两种原始不混溶聚合物中另一种的折射率的所得折射率。 或者,如果需要特定量的第三聚合物和与其混溶的原始聚合物,则两种不混溶聚合物中的另一种选择为具有接近两种可混溶聚合物的折射率的折射率的那种。 通过使用本发明的方法改善光学透明度的一种特定共混体系是包含以下物质的共混物:(a)树脂单乙烯基芳族 - 共轭二烯共聚物; (b)苯乙烯 - 马来酸酐共聚物; 和(c)聚(α-甲基苯乙烯)。

    PROCESS FOR PRODUCING MEDICAL IMPLANT OR MEDICAL IMPLANT PART COMPRISING POROUS UHMWPE
    8.
    发明申请
    PROCESS FOR PRODUCING MEDICAL IMPLANT OR MEDICAL IMPLANT PART COMPRISING POROUS UHMWPE 有权
    用于生产包含多孔UHMWPE的医疗植入物或医疗植入物部件的方法

    公开(公告)号:US20100283184A1

    公开(公告)日:2010-11-11

    申请号:US12839049

    申请日:2010-07-19

    IPC分类号: B29C43/02

    CPC分类号: A61L27/56 A61L27/16 C08L23/06

    摘要: The invention provides a medical implant or medical implant part comprising porous ultrahigh molecular weight polyethylene having a weight average molecular weight of about 400,000 atomic mass units or more and a porosity of about 15% to about 65%. The invention further provides a process for producing a medical implant or medical implant part.

    摘要翻译: 本发明提供一种包含多孔超高分子量聚乙烯的医用植入物或医用植入物部件,其重均分子量约为400,000原子质量以上且孔隙率为约15%至约65%。 本发明还提供了一种用于生产医用植入物或医疗植入物部件的方法。