Method and apparatus for stabilizing adjacent bones
    1.
    发明授权
    Method and apparatus for stabilizing adjacent bones 有权
    用于稳定相邻骨骼的方法和装置

    公开(公告)号:US06689168B2

    公开(公告)日:2004-02-10

    申请号:US10200206

    申请日:2002-07-22

    IPC分类号: A61F244

    摘要: An apparatus (10) is provided for implantation into an adjacent pair of vertebral bodies (12 and 14) having first and second surfaces (17 and 19) that oppose each other. The apparatus (10), when implanted, is attached to the adjacent pair of vertebral bodies and stabilizes the vertebral bodies (12 and 14) while the vertebral bodies fuse together. The apparatus (10) comprises a platform (24) having a third surface (38) extending transverse to the first and second surfaces (17 and 19). The apparatus (10) further comprises at least one helical spike (50, 52) for embedding into each of the adjacent pair of vertebral bodies (12 and 14) upon rotation of the platform (24) to attach the helical spike to each of the vertebral bodies and thus fasten the vertebral bodies together. The helical spike (50, 52) projects from the platform (24) and extends around a longitudinal axis (22). The helical spike (50, 52) has a tip portion (58) at a distal end (62) for penetrating the first and second surfaces (17 and 19) and for screwing into the adjacent pair of vertebral bodies (12 and 14) as the platform (24) is rotated. The helical spike (50, 52) at least partially defines an internal cavity (140) for receiving material (130) that promotes fusion of the vertebral bodies (12 and 14).

    摘要翻译: 提供了一种用于植入相邻的一对椎体(12和14)的设备(10),所述脊椎体具有彼此相对的第一和第二表面(17和19)。 装置(10)当植入时被附接到相邻的一对椎体并使脊椎体(12和14)稳定,同时椎体熔合在一起。 装置(10)包括具有横向于第一和第二表面(17和19)延伸的第三表面(38)的平台(24)。 所述装置(10)还包括至少一个螺旋钉(50,52),用于在所述平台(24)旋转时嵌入到相邻的一对椎体(12和14)中,以将所述螺旋尖钉附接到 椎体,从而将椎体固定在一起。 螺旋钉(50,52)从平台(24)突出并围绕纵向轴线(22)延伸。 螺旋钉(50,52)在远端(62)处具有用于穿透第一和第二表面(17和19)并用于旋入相邻的一对椎体(12和14)中的尖端部分(58),如 平台(24)旋转。 螺旋钉(50,52)至少部分地限定用于接收促进脊椎体(12和14)融合的材料(130)的内​​腔(140)。