Method and a Device for Total Spinal Disc Replacement
    19.
    发明申请
    Method and a Device for Total Spinal Disc Replacement 审中-公开
    方法和全脊柱置换装置

    公开(公告)号:US20080119932A1

    公开(公告)日:2008-05-22

    申请号:US11722908

    申请日:2005-12-27

    IPC分类号: A61F2/44

    摘要: A method for total replacement of an affected intervertebral disc through a dorsal approach comprising the steps of removing the disc material of the affected intervertebral disc (3) and inserting an intervertebral prosthesis (30) into the intervertebral disc space via an extraforaminal path (23). An intervertebral prosthesis (100), in particular an intervertebral disk prosthesis comprising A) a first prosthetic component (101) having a first apposition surface (107) disposed transversely to the central axis (103) B) a second prosthetic component (102) having a second apposition surface (108) disposed transversely to the central axis (103); whereby C) said first and second prosthetic components (101;102) are connected by means of an articulation (106); whereby D) when viewed parallel to said central axis (103) said first and second prosthetic components (101;102) have an elongated shape with a major axis (127) and a transverse minor axis (128); E) said central axis (103), major axis (127) and transverse minor axis (128) intersecting each other and said central axis (103) and transverse minor axis (128) defining a middle plane (126); F) said first and second prosthetic component (101;102) have a cross-sectional area orthogonal to said central axis (103) which is essentially oval or elliptical; whereby G) said cross-sectional area comprises at least two concavities (125;130) lying on different sides of said middle plane (126) and on the same side of said major axis (127).

    摘要翻译: 一种用于通过背侧方法完全替换受影响的椎间盘的方法,包括以下步骤:去除受影响的椎间盘(3)的椎间盘材料,并且经由椎间孔路径(23)将椎间假体(30)插入椎间盘间隙中, 。 一种椎间假体(100),特别是椎间盘假体,包括A)第一假体部件(101),其具有横向于中心轴线(103)设置的第一邻接表面(107); B)第二假体部件(102) 横向于所述中心轴线设置的第二配置表面(108); 由此C)所述第一和第二假肢部件(101; 102)通过关节(106)连接; 由此D)当平行于所述中心轴线(103)观察时,所述第一和第二假肢部件(101; 102)具有长轴(127)和横向短轴(128)的细长形状; E)所述中心轴线(103),长轴(127)和横向短轴线(128)彼此相交,所述中心轴线(103)和横向短轴线(128)限定中间平面(126); F)所述第一和第二假体部件(101; 102)具有与所述中心轴线(103)正交的横截面面积,其基本上是椭圆形或椭圆形; 由此G)所述横截面积包括位于所述中间平面(126)的不同侧面上并且在所述长轴(127)的同一侧上的至少两个凹部(125; 130)。