Double shell implant for cementless anchorage of joint prostheses
    1.
    发明授权
    Double shell implant for cementless anchorage of joint prostheses 有权
    双壳植入物用于关节假体的无骨水泥锚固

    公开(公告)号:US07776097B2

    公开(公告)日:2010-08-17

    申请号:US11547518

    申请日:2005-03-31

    摘要: The invention solves the problem of anchoring a prosthetic component into compliant, cancellous bone by a thin, preferably pure titanium, or a titanium-based alloy, perforated, hence hydraulically open, shell (1, 13), spaced apart from the second, non-perforated shell (2, 14). In most applications, dictated by the anatomical site of insertion, shells are approximately hemispherical in form, connected to each other at the equator. The solid shell may contain a further, articulating component of the joint, e.g. a polymer or a ceramic insert, or it may serve that function itself. One or both components of a joint prosthesis can be anchored according to the invention.

    摘要翻译: 本发明解决了通过薄的,优选纯的钛或钛基合金将假体组件锚定到柔软的松质骨中的问题,所述钛基合金是穿孔的,因此液压开放的壳(1,13)与第二非 - 穿孔外壳(2,14)。 在大多数应用中,由插入的解剖部位决定,壳体在形状上大致半球形,在赤道处彼此连接。 固体外壳可以包含另一个关节的关节部件,例如。 聚合物或陶瓷插入物,或者它可以用于其自身的功能。 关节假体的一个或两个部件可以根据本发明锚定。

    Double Shell Implant for Cementless Anchorage of Joint Prostheses
    3.
    发明申请
    Double Shell Implant for Cementless Anchorage of Joint Prostheses 有权
    双壳植入物用于无缝骨锚固缝合假体

    公开(公告)号:US20070208428A1

    公开(公告)日:2007-09-06

    申请号:US11547518

    申请日:2005-03-31

    IPC分类号: A61F2/34 A61F2/30

    摘要: The invention solves the problem of anchoring a prosthetic component into compliant, cancellous bone by a thin, preferably pure titanium, or a titanium-based alloy, perforated, hence hydraulically open, shell (1, 13), spaced apart from the second, non-perforated shell (2, 14). In most applications, dictated by the anatomical site of insertion, shells are approximately hemispherical in form, connected to each other at the equator The solid shell may contain a further, articulating component of the joint, e.g. a polymer or a ceramic insert, or it may serve that function itself. One or both components of a joint prosthesis can be anchored according to the invention.

    摘要翻译: 本发明解决了通过薄的,优选纯的钛或钛基合金将假体组件锚定到柔软的松质骨中的问题,所述钛基合金是穿孔的,因此液压开放的壳(1,13)与第二非 - 穿孔外壳(2,14)。 在大多数应用中,由插入的解剖部位决定,壳体的形状近似半球形,在赤道处彼此连接。固体壳体可以包含另一个关节部分,例如关节部分。 聚合物或陶瓷插入物,或者它可以用于其自身的功能。 关节假体的一个或两个部件可以根据本发明锚定。

    RESURFACING CUP FOR ACETABULUM HEMIARTHROPLASTY OF THE HIP JOINT

    公开(公告)号:US20220183847A1

    公开(公告)日:2022-06-16

    申请号:US17600685

    申请日:2020-03-31

    发明人: Slobodan TEPIC

    IPC分类号: A61F2/34 A61F2/36

    摘要: The present invention disclosed resolves the main problems of bone-sparing hip resurfacing surgery by using only an acetabular component in which the femoral head articulates, being only shaved to a spherical shape and cleared of osteophytes that could impinge on the acetabulum and so restrict the range of motion. The inner surface of the resurfacing cup is aspherical in shape creating an annular contact with the femoral head. The inner, articulating surface of the cup (10) is ADLC or pyrolytic carbon coated to reduce friction and wear of the femoral head. The surgical approach is well developed with surgery time significantly reduced by avoiding the use of the femoral resurfacing component. The cup is preferably of the double¬shell type for cementless fixation, but it can also be made as a single shell for cementless or cemented fixation. Should a revision surgery due to wear of the femoral head become necessary, the cup can be retained and combined with a dual mobility femoral component.

    Wear-Reducing Ring for Articulations in Total Joint Replacements
    8.
    发明申请
    Wear-Reducing Ring for Articulations in Total Joint Replacements 有权
    全关节置换术中用于关节的磨损减少环

    公开(公告)号:US20150051707A1

    公开(公告)日:2015-02-19

    申请号:US14240231

    申请日:2012-08-31

    IPC分类号: A61F2/34

    摘要: The articulating joint prostheses of the invention demonstrate reduced wear and can include a cup (101) formed of UHMWPE. An insert (150) of a hard material, such as metal, ceramic or cross-linked UHMWPE is positioned within the cup at a location of the contact between the cup and head (102). The shape of either component of the kinematic pair may be modified so as to result in an annular surface contact between the two components, with the insert positioned at the annular surface contact. Fluid trapped between the two components within the inner contour of the annular contact area is pressurized under load due to elastic deformation of the components and exuded out through an inter-articular gap over the surface of contact of the insert. This aids lubrication and reduces wear.

    摘要翻译: 本发明的铰接关节假体表现出减少的磨损,并且可以包括由UHMWPE形成的杯(101)。 诸如金属,陶瓷或交联UHMWPE的硬质材料的插入物(150)在杯和头(102)之间的接触的位置处定位在杯内。 可以修改运动对的任一部件的形状,以便导致两个部件之间的环形表面接触,其中插入件位于环形表面接触处。 在环形接触区域的内部轮​​廓内的两个部件之间的流体由于部件的弹性变形而在负载下加压,并通过插入件的接触表面上的关节间隙而渗出。 这有助于润滑并减少磨损。