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    Modular polymer femoral components with metallic inserts
    4.
    发明授权
    Modular polymer femoral components with metallic inserts 有权

    公开(公告)号：US11478357B2

    公开(公告)日：2022-10-25

    申请号：US16897668

    申请日：2020-06-10

    Applicant: Howmedica Osteonics Corp.

    Inventor： Mark Gruczynski ,  Keenan Michael Hanson

    IPC: A61F2/38 ,  A61F2/30

    Abstract: A system for converting a first joint prosthesis to a second joint prosthesis in-situ includes a plurality of inserts having a bone interface side and a component facing side and a plurality of articulating components having a cavity configured to receive at least one of the plurality of inserts. The plurality of inserts may be unicompartmental, bicompartmental, or tricompartmental. The inserts may be made of metal and may have a bone contacting surface made of a porous metal. The plurality of articulating components may be unicompartmental, bicompartmental, or tricompartmental. The articulating components may be sized and shaped to cover one or more of the plurality of bone interface components and span a distance therebetween. The articulating components may be made of a polymer.

    Peek Femoral Component With Segmented Ti Foam In-growth
    5.
    发明申请
    Peek Femoral Component With Segmented Ti Foam In-growth 审中-公开

    公开(公告)号：US20200222192A1

    公开(公告)日：2020-07-16

    申请号：US16835446

    申请日：2020-03-31

    Applicant: Howmedica Osteonics Corp.

    Inventor： Keenan Michael Hanson

    IPC: A61F2/30 ,  A61F2/38 ,  A61F2/36 ,  A61L27/56

    Abstract: A medical implant includes a body and a porous structure attached to the body. A boss integral with the body extends outwardly from a surface of the body. The porous structure has a surface that cooperates with the boss of the body to prevent pullout of the body from the porous structure. In fabricating the medical implant, the body and the porous structure are formed separately and subsequently secured together.

    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

    Applicant: Howmedica Osteonics Corp.

    Inventor： Shulin He ,  Zongtao Zhang ,  Keenan Michael Hanson ,  Shi-Shen Yau

    IPC: C08K5/1545

    CPC classification number: C08J3/245 ,  A61L27/16 ,  A61L27/50 ,  A61L2400/18 ,  A61L2430/02 ,  C08J7/123 ,  C08J2323/06 ,  C08K5/1545 ,  C08L23/06

    Abstract: 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.

    Abstract translation: 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

    Applicant: Howmedica Osteonics Corp.

    Inventor： Daniel E. Lawrynowicz ,  Haitong Zeng ,  Zongtao Zhang ,  Aiguo Wang ,  Keenan Michael Hanson

    IPC: A61F2/36

    CPC classification number: A61F2/3609 ,  A61F2/30767 ,  A61F2002/30051 ,  A61F2002/30107 ,  A61F2002/30332 ,  A61F2002/30973 ,  A61F2002/3611

    Abstract: 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.

    Abstract translation: 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。

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