-
公开(公告)号:US5658343A
公开(公告)日:1997-08-19
申请号:US472699
申请日:1995-06-06
IPC分类号: A61L27/00 , A61F2/00 , A61F2/02 , A61F2/28 , A61F2/30 , A61L27/08 , A61L27/16 , A61L27/18 , A61L27/58 , A61F2/38
CPC分类号: A61F2/30756 , A61F2/30965 , A61L27/08 , A61L27/16 , A61L27/18 , A61L27/58 , A61F2/3094 , A61F2002/30008 , A61F2002/30062 , A61F2210/0004 , A61F2250/0017 , A61F2310/00161 , A61L2400/12 , A61L2430/06
摘要: This invention provides an implant (prosthesis) for the replacement of defective biological tissue part. In particular, the implants of this invention are well suited for the replacement of cartilage, more preferably for the replacement of articular cartilage. In one embodiment, the implants comprise a micromatrix constructed from an upper boundary layer and a lower boundary layer where the upper and said lower boundary layers are connected via an intermediate layer with fibers. The implant also includes a nanomatrix situated within the intermediate layer. The nanomatrix contains elements of a size on the order of magnitude of nanometers. The intermediate layer accommodates the nanomatrix such that, for a growing inner pressure the boundary layers are mutually held at a preset distance from one another.
摘要翻译: 本发明提供了用于替换有缺陷的生物组织部分的植入物(假体)。 特别地,本发明的植入物非常适合于替代软骨,更优选用于替代关节软骨。 在一个实施例中,植入物包括由上边界层和下边界层构成的微矩阵,其中上边界层和下边界层通过具有纤维的中间层连接。 植入物还包括位于中间层内的纳米线。 纳米线含有纳米级数量级的元素。 中间层容纳纳米线,使得对于越来越大的内部压力,边界层彼此相互保持在预设的距离。