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    • 3. 发明申请
    • CAGE-TYPE INTERVERTEBRAL IMPLANT
    • 笼状椎间植入物
    • WO01070144A1
    • 2001-09-27
    • PCT/CH2001/000179
    • 2001-03-21
    • A61L27/00A61F2/00A61F2/30A61F2/44A61F2/46
    • A61F2/4465A61F2/30965A61F2/442A61F2/4611A61F2002/3008A61F2002/30133A61F2002/30774A61F2002/30777A61F2002/30785A61F2002/30787A61F2002/30807A61F2002/30828A61F2002/30879A61F2002/30892A61F2002/30976A61F2002/4475A61F2230/0015A61F2250/0098A61F2310/00017A61F2310/00023A61F2310/00796
    • The invention relates to a cage-type intervertebral implant that is made up of a dished side wall (1), a cambered side wall (2), a front part (3), a rear part (4) and at least one intermediate wall (5, 6), thus comprising at least two cavities (7, 8, 9). An upper and a lower cage surface (10, 11) include a first lordosis angle ( alpha 1) in the direction front part - rear part and a second lordosis angle ( alpha 2) perpendicular thereto, said cage surfaces (10, 11) intersecting outside the cage. The cage structure is characterized by a double-wedge geometry (double-wedge-shaped cage) that is defined by the two lordosis angles ( alpha 1) and ( alpha 2) and that advantageously adapts itself to the anatomical conditions in the intervertebral area. The cage is further characterized by a high moment of tilt that effectively counteracts a tipping of the cage. The method used for producing the cage structure is essentially characterized by working the cage material by means of a high-pressure water jet, said cold-cutting technique having proved to be the most economical.
    • 本发明涉及一种笼状的椎间植入体,其由凹形弯曲侧壁(1),凸弯曲侧壁(2),前部(3),后部(4)和至少一个中间壁(5,6)形成,并且因此至少2个腔 (7,8,9)。 的上部和下部笼表面(10,11)形成第一前凸角的方向前部后部和第二前凸角(α - 2)与其垂直(阿尔法1),其中,所述保持架表面(10,11)相交的笼外。 因此,笼状结构的特征在于,由两个前凸角(α1和α - 2)中所定义的双楔形的几何形状(双楔形笼)引起,并且适应于椎间区有利的解剖结构。 此外,保持架的特征在于,倾斜的高的时刻,有效地抵消了保持架的倾斜。 用于制备笼形结构的方法,提供了一种用于保持架材料的通过高压水射流的装置的处理中,作为必要步骤。 该冷切削方法已被证明是特别经济的。