Intervertebral prosthetic disc
    1.
    发明授权

    公开(公告)号:US10342671B2

    公开(公告)日:2019-07-09

    申请号:US14287709

    申请日:2014-05-27

    IPC分类号: A61F2/44 A61F2/30

    摘要: A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.