INTERVERTEBRAL DISK STABILIZER
    3.
    发明授权
    INTERVERTEBRAL DISK STABILIZER 失效
    椎间盘稳定器

    公开(公告)号:EP0830116B1

    公开(公告)日:2002-09-11

    申请号:EP96918186.6

    申请日:1996-06-06

    摘要: A middle expanded, removable disk implant (22) with substantially rectangular cross-sectional shape with a minimal height (H) and a width (W) greater than the height which is detachably mounted to an applicator (52) for insertion into the anatomical region between two adjacent vertebrae (16, 18) from which a portion of the intervertebral disk has been removed. The implant is positioned by anterior-posterior movement in the disk space to the position in which both the expanded middle portion and the smaller diameter end (25, 36) portions of the implant engage the bodies (12, 14) of the adjacent vertebrae and then rotated to bring the sides (34) of the implant defining the height of the implant into engagement with the bodies of the adjacent vertebrae. A lock (24) is then secured to the implant to prevent further rotation thereof. In the event the adjacent vertebrae need to be aligned before fusion, an elongate implant (112) is provided which is split longitudinally into side-by-side members (113, 114) movable relative to each other and which is inserted into the disk space between two misaligned vertebrae (133, 137). The members are provided with teeth (138) for engaging the adjacent vertebrae and the implant formed by the two side-by-side members is rectangularly-shaped in cross section, the height (H6) of the rectangularly-shaped cross section being less than the width (W6) so that the implant can be inserted between the adjacent vertebrae with the lesser, height dimension oriented in the same direction as the axis of the spinal column and the larger width dimension at approximately a right angle to that axis. One member is then moved relative to the other from the first side-by-side position along the longitudinal axis of the implant to a second position in which the members are aligned with the respective, adjacent, misaligned vertebrae and the implant is rotated 90° to engage the teeth to the bodies of the adjacent vertebrae. The two members are then brought back into the first side-by-side position to draw the vertebrae into alignment and the implant is rotated approximately 90° to disengage the teeth from the vertebrae for removal from the disk space.

    摘要翻译: 一种具有大致矩形横截面形状的中间扩张的可移动盘状植入物(22),其具有大于可拆卸地安装到涂药器(52)的高度的最小高度(H)和宽度(W),以用于插入解剖区域 在两个相邻的椎骨(16,18)之间,椎间盘的一部分已经从所述椎骨移除。 通过在盘空间中的前后运动将植入物定位到植入物的膨胀的中间部分和较小直径的端部(25,36)部分与相邻椎骨的主体(12,14)接合的位置,并且 然后旋转以使限定植入物高度的植入物的侧面(34)与相邻椎骨的主体接合。 然后将锁(24)固定到植入物以防止其进一步旋转。 在相邻椎骨在融合之前需要对准的情况下,提供细长植入物(112),所述细长植入物纵向地分成可相对于彼此移动的并排构件(113,114)并且被插入到盘空间 在两个错位的椎骨之间(133,137)。 所述构件设置有用于接合相邻椎骨的齿(138),并且由所述两个并排构件形成的植入物的横截面为矩形,所述矩形横截面的高度(H6)小于 宽度(W6),使得植入物可插入相邻椎骨之间,较小的高度尺寸与脊柱的轴线方向相同,而较大的宽度尺寸与该轴线大致成直角。 然后一个构件相对于另一个沿着植入物的纵向轴线从第一并排位置移动到第二位置,在该第二位置中,构件与相应的相邻的未对齐的椎骨对齐,并且植入物旋转90° 以将牙齿接合到相邻椎骨的身体上。 然后将两个构件放回到第一个并排位置以将椎骨牵引成对齐,并且将植入物旋转大约90°以使牙齿与椎骨脱离以从椎间盘空间移除。

    Prothèse articulaire assemblée par gradins
    7.
    发明公开
    Prothèse articulaire assemblée par gradins 失效
    Durch Stufen多伦多Gelenkprothese

    公开(公告)号:EP0788782A1

    公开(公告)日:1997-08-13

    申请号:EP97400189.3

    申请日:1997-01-28

    IPC分类号: A61F2/30 A61F2/36

    摘要: Cette prothèse articulaire comprend une pièce proximale (P) et une pièce distale (D). Chaque pièce (P,D) comporte plusieurs tronçons (P1, P2, P3, P4, D1, D2, D3, D4) en gradins l'épaisseur (e 1 , e 2 , e 3 , e 4 ) des tronçons (D1, D2, D3, D4) de l'une des pièces (D) étant croissante, tandis que celle (E1, E2, E3, E4) des tronçons (P1, P2, P3, P4) de l'autre pièce (P) est décroissante.

    摘要翻译: 假体由近端(P)和远端(D)部分组成,具有接合的阴性和阳性表面,两者都是阶梯式和渐缩型的。 近端部的台阶部(P1-P4)的厚度(E1,E2)从接头的一端减小到另一端。 远端部分的相应部分的厚度(e1,e2)沿相同方向增加。 每个阶梯部分的产生表面相对于假体冲击的轴线(X-X')形成5度以下,优选3度的角度。 或者,台阶的锥度角可以不同。 假体的两个部分通过与远端部分中的螺纹孔接合的螺纹杆(F)而固定在一起。