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    • 8. 发明申请
    • A NOVEL INTERVERTEBRAL DISC PROSTHESIS
    • 一个新的跨地区的DISC PROSTHISISIS
    • WO2007023399A8
    • 2007-05-18
    • PCT/IB2006052359
    • 2006-07-12
    • CONSIGLIO NAZIONALE RICERCHEAMBROSIO LUIGITANNER ELIZABETH K
    • AMBROSIO LUIGITANNER ELIZABETH K
    • A61F2/44A61L27/46
    • A61F2/4425A61F2/30965A61F2002/30004A61F2002/30649A61F2002/30685A61F2002/30841A61F2250/0014A61F2310/00293A61L27/46A61L2430/38C08L23/06
    • A disc prosthesis, suitable for replacing an intervertebral disc, includes a first (1; 1') and a second (2; 2') articulation component. The components comprise respective endplates (11, 21; 11', 21') suitable for being anchored to respective vertebrae. . The first articulation component further comprises a spacer member (13; 13') suitable for being interposed between the endplates, and which is disposed on the endplate (11; 11') of the first component (1; 1') and has a convex articulation surface (19; 19') suitable for being placed in contact with a corresponding concave articulation surface (29; 29') disposed on the endplate of- the second component. The articulation -components are made at least partially of polyethylene reinforced with calcium phosphate, one of same further having a part (17; 27'), facing towards the other articulation component, which is made of ultra-high molecular weight polyethylene, and on which one of the articulation surfaces is provided.
    • 适合于更换椎间盘的椎间盘假体包括第一(1; 1')和第二(2; 2')铰接部件。 这些部件包括适于锚定到相应椎骨的相应端板(11,21; 11',21')。 。 所述第一关节部件还包括适于插入在所述端板之间并且设置在所述第一部件(1; 1')的所述端板(11; 11')上并具有凸起的间隔件(13; 13') 铰接表面(19; 19')适于与设置在第二部件的端板上的对应的凹形铰接表面(29; 29')放置接触。 关节 - 组件至少部分地由磷酸钙增强的聚乙烯制成,其中一个还具有面向另一个铰接部件的部分(17; 27'),该部分由超高分子量聚乙烯制成,并且在 提供哪一个关节表面。