DUAL MOBILITY HIP REPLACEMENT SYSTEM
    5.
    发明申请
    DUAL MOBILITY HIP REPLACEMENT SYSTEM 审中-公开
    双动力髋关节置换系统

    公开(公告)号:US20150025647A1

    公开(公告)日:2015-01-22

    申请号:US13943282

    申请日:2013-07-16

    发明人: Zongtao Zhang

    IPC分类号: A61F2/34 A61F2/36

    摘要: A total hip implant system comprising: a prosthetic femoral component having a head with a part-spherical bearing surface; and a dual mobility acetabular cup system comprising a first bearing component made of ultra high molecular weight polyethylene mounted on the head, the first bearing component having a part-spherical inner bearing surface rotatably engaging the part-spherical bearing surface of the head, and having a part-spherical outer bearing surface, a second bearing component made of polyetheretherketone (PEEK) having an inner part-spherical bearing surface rotatably engaging the part-spherical outer bearing surface of the first bearing surface.

    摘要翻译: 一种全髋关节植入系统,包括:假体股骨部件,其具有带有部分球形支承表面的头部; 以及双重移动性髋臼杯系统,其包括安装在所述头部上的由超高分子量聚乙烯制成的第一轴承部件,所述第一轴承部件具有可旋转地接合所述头部的所述部分球形支承表面的部分球形的内部支承表面, 一个部分球形外轴承表面,一个由聚醚醚酮(PEEK)制成的第二轴承部件,其具有可旋转地接合第一支承表面的部分球形外支承表面的内部球面轴承表面。

    SURFACE CROSSLINKED POLYETHYLENE
    9.
    发明申请
    SURFACE CROSSLINKED POLYETHYLENE 有权
    表面交联聚乙烯

    公开(公告)号:US20150322239A1

    公开(公告)日:2015-11-12

    申请号:US14806031

    申请日:2015-07-22

    IPC分类号: C08K5/1545

    摘要: A method for producing a wear resistant polyethylene medical implant includes forming a medical implant, such as an orthopedic implant, made at least partially of ultra high molecular weight polyethylene (UHMWPE). The polyethylene may be irradiated with gamma ray or e-beam radiation to form free radicals and then crosslinked to eliminate free radicals prior to exposure to oxygen. The so treated bearing surface of the crosslinked polyethylene is then coated with a photoinitiator. Thereafter the bearing material is photocrosslinked with ultra-violet (UV) radiation. The photocrosslinking process can also be applied to non-crosslink UHMWPE.

    摘要翻译: 用于制造耐磨聚乙烯医疗植入物的方法包括形成至少部分由超高分子量聚乙烯(UHMWPE)制成的医疗植入物,例如矫形植入物。 可以用γ射线或电子束辐射照射聚乙烯以形成自由基,然后在暴露于氧气之前进行交联以消除自由基。 然后用光引发剂涂覆如此处理的交联聚乙烯的承载表面。 此后,轴承材料与紫外(UV)辐射光交联。 光交联工艺也可应用于非交联UHMWPE。

    FEMORAL PROSTHESIS HEAD
    10.
    发明申请
    FEMORAL PROSTHESIS HEAD 有权
    股骨头假体

    公开(公告)号:US20140222158A1

    公开(公告)日:2014-08-07

    申请号:US13760449

    申请日:2013-02-06

    IPC分类号: A61F2/36

    摘要: A prosthetic head for a femoral component has a metal shell with a tapered cavity. The shell has a part-spherical outer surface defining an inner portion terminating in an open end. A polymeric material completely fills the inner portion of the hollow shell extending from an inner surface of the shell to the open end. The polymeric material includes a conically tapered socket centered about the polar axis intermediate ends of the open end wherein the shell is a hollow titanium shell having an inner surface with a porous structure for receiving a portion of the polymeric material. The hollow titanium shell inner surface has at least one rib extending inwardly toward the conically tapered socket.

    摘要翻译: 用于股骨部件的假体头具有具有锥形腔的金属壳。 壳体具有限定终止于开口端的内部部分的球形外表面。 聚合物材料完全填充从壳体的内表面延伸到开口端的中空壳体的内部。 聚合物材料包括以开口端的极轴中心端为中心的圆锥形插座,其中壳体是中空钛壳体,其具有用于容纳聚合物材料的一部分的多孔结构的内表面。 中空的钛壳内表面具有至少一个朝着锥形锥形插座向内延伸的肋。