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    A TRIAL PATELLA COMPONENT KIT
    4.
    发明公开
    A TRIAL PATELLA COMPONENT KIT 审中-公开

    公开(公告)号：US20240016618A1

    公开(公告)日：2024-01-18

    申请号：US17999996

    申请日：2021-05-20

    申请人： Eventum Orthopaedics Limited

    发明人： John Naybour ,  Mark Clatworthy

    IPC分类号： A61F2/38 ,  A61F2/46 ,  A61B17/15

    CPC分类号： A61F2/3877 ,  A61F2/4684 ,  A61B17/158 ,  A61F2/4657 ,  A61F2002/4666 ,  A61F2002/30616

    摘要： A kit for use in knee replacement surgery includes a trial patella component and a patella implant component. The trial patella component includes a backing plate having a backing surface for positioning against a patient's patella, and at least one sensor which can generate a signal corresponding to the compressive load applied to the trial patella component, and a first bearing plate which can be fitted to the backing plate and which, when fitted to the backing plate, provides a bearing surface for articulation against a bearing surface on the patient's femur. The patella implant component has a backing surface for fixation to a patient's patella instead of the backing surface of the trial patella component, and a bearing surface for articulation against a femoral bearing surface. The thickness of the patella implant component is greater than the thickness of the trial patella component when the first bearing plate is fitted to the backing plate, the difference between the said thicknesses being at least about 1 mm.

    CONSTRAINED SPACER DEVICE FOR THE KNEE
    8.
    发明申请
    CONSTRAINED SPACER DEVICE FOR THE KNEE 审中-公开

    公开(公告)号：US20190216607A1

    公开(公告)日：2019-07-18

    申请号：US16300197

    申请日：2017-05-10

    申请人： TECRES S.p.A.

    发明人： Giovanni FACCIOLI ,  Renzo SOFFIATTI

    IPC分类号： A61F2/38

    CPC分类号： A61F2/3836 ,  A61F2/3859 ,  A61F2/3877 ,  A61F2/389 ,  A61F2230/0006

    摘要： Spacer device for the knee joint comprising a tibial component, adapted to be fixed to one end of the tibial bone in proximity to the knee joint, and a femoral component, adapted to be fixed to one end of the femoral bone in proximity to the knee joint, wherein the tibial component is adapted to come into contact and be articulated with the femoral component, wherein the tibial component includes a protrusion adapted to be inserted in an opening present in the femoral component; method for the assembly of the spacer device.

    PATELLOFEMORAL IMPLANT
    10.
    发明申请
    PATELLOFEMORAL IMPLANT 审中-公开

    公开(公告)号：US20180325685A1

    公开(公告)日：2018-11-15

    申请号：US15979712

    申请日：2018-05-15

    申请人： Howmedica Osteonics Corp.

    发明人： Peter Wellings ,  Sandeep K. Chauhan ,  Michael C. Ferko

    IPC分类号： A61F2/38

    CPC分类号： A61F2/3859 ,  A61F2/3877 ,  A61F2002/30242 ,  A61F2002/30327 ,  A61F2002/30383

    摘要： A femoral implant for articulation with a patella or a patellar implant includes a body having an articular surface defining a trochlear groove. The trochlear groove is defined by a first trochlear radius at a first location along the trochlear groove and by a second trochlear radius at a second location along the trochlear groove, the first radius being different than the second radius. The configuration of the trochlear groove is such that it narrows as a patella or patellar implant moves from an extension configuration to a flexion configuration. A kit includes the femoral implant along with a patellar implant. A method of trialing involves use of the femoral implant or kit to ensure a smooth transition of the patella or the patellar implant from the femoral component to the adjacent bone.