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    • 7. 发明申请
    • ALLOGENIC INTERVERTEBRAL IMPLANT
    • 异源性椎间植入物
    • WO9938461A3
    • 1999-11-04
    • PCT/EP9900433
    • 1999-01-22
    • SYNTHES AGSYNTHES USA
    • PAUL DAVID CEMCH HANSJUERG WSCHENK BEATCARVER JEFFREY LBAKER KELLY J
    • A61F2/00A61F2/28A61F2/30A61F2/44A61F2/46
    • A61F2/447A61F2/28A61F2/4455A61F2/4465A61F2/4611A61F2002/2835A61F2002/30126A61F2002/30153A61F2002/30772A61F2002/30774A61F2002/30828A61F2002/30843A61F2002/30904A61F2002/4475A61F2230/0008A61F2230/0019
    • An allogenic intervertebral implant (10) for fusing vertebrae is disclosed. The implant (10) is an annular plug conforming in size and shape with end plates of vertebrae. The implant has either an exterior surface identical to that of the harvest bone or an exterior surface machined to have a uniform shape such as an oval or a rectangle. The top and bottom surfaces (14, 16) of the implant (10) have a plurality of teeth (12) to resist expulsion and provide initial stability. The top and bottom surfaces (14, 16) can be either flat planar surfaces or curved surfaces. Preferably, the anterior height of the implant is greater than the posterior height so that the implant is wedge-shaped profile to help restore disc height and the natural curvature of the spine. In one embodiment, the top and bottom surfaces each have a channel oriented in the anterior, lateral, or antero-lateral direction for receiving a surgical instrument. The implant can also have a hole for attachment of an inserter. Although the interior space formed by the annular plug can be the natural shape defined by the medullary canal, the medullary canal walls can be machined so that the implant has a uniform interior space.
    • 公开了一种用于融合椎骨的同种异体椎间植入物(10)。 植入物(10)是与椎骨的端板一致的尺寸和形状的环形塞。 植入物具有与收获骨的外表面相同的外表面或加工成具有均匀形状(例如椭圆形或矩形)的外表面。 植入物(10)的顶面和底面(14,16)具有多个齿(12)以抵抗排出并提供初始稳定性。 顶部和底部表面(14,16)可以是平坦的平坦表面或曲面。 优选地,植入物的前部高度大于后部高度,使得植入物为楔形轮廓以帮助恢复椎间盘高度和脊柱的自然曲率。 在一个实施例中,顶表面和底表面各自具有沿前,侧或前后方向取向的通道,用于接收手术器械。 植入物还可以具有用于连接插入器的孔。 尽管由环形塞形成的内部空间可以是由髓管限定的自然形状,但可以加工髓管壁以使植入物具有均匀的内部空间。