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公开(公告)号:US20090326656A1
公开(公告)日:2009-12-31
申请号:US12556658
申请日:2009-09-10
IPC分类号: A61F2/44
CPC分类号: A61F2/4425 , A61F2/30771 , A61F2002/30054 , A61F2002/3008 , A61F2002/30331 , A61F2002/30405 , A61F2002/30462 , A61F2002/30574 , A61F2002/30649 , A61F2002/30662 , A61F2002/30663 , A61F2002/30884 , A61F2002/30899 , A61F2002/30904 , A61F2002/443 , A61F2220/0025 , A61F2220/0033 , A61F2220/0075 , A61F2230/0071 , A61F2250/0045 , A61F2250/0098 , A61F2310/00023 , A61F2310/00029 , A61F2310/00179 , A61F2310/00604 , A61F2310/0088
摘要: A prosthetic disc for insertion between adjacent vertebrae includes upper and lower plates, a core disposed between the plates, and at least one projection extending from at least one of the upper and lower curved surfaces of the core into at least one recess of one of the inner surfaces of the plates. The recess is oversize with respect to the projection to allow sliding movement of the plate over the core while retaining the core between the plates during such sliding movement. The projection(s) may include a rod extending through an axial hole in the core, multiple surface features of the core, or the like.
摘要翻译: 用于在相邻椎骨之间插入的假体盘包括上板和下板,设置在板之间的芯以及从芯的上下曲面中的至少一个延伸到至少一个凹槽中的至少一个凹部 板的内表面。 相对于突出部,凹槽是大尺寸的,以允许板在芯上的滑动运动,同时在这种滑动运动期间将芯保持在板之间。 突起可以包括延伸穿过芯中的轴向孔的杆,芯的多个表面特征等。