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    • 8. 发明授权
    • Endosseous implant having polycapillary structure
    • 骨内植入物具有毛细管结构
    • US4964801A
    • 1990-10-23
    • US425513
    • 1989-10-20
    • Haruyuki KawaharaKatsumi TanakaYasuyuki AshiuraMotonobu Yoshimura
    • Haruyuki KawaharaKatsumi TanakaYasuyuki AshiuraMotonobu Yoshimura
    • A61C8/00A61F2/00A61F2/28A61F2/30
    • A61C8/0012A61C8/001A61C8/0018A61C8/0039A61F2/28A61F2/30771A61C8/0019A61F2/30749A61F2002/30112A61F2002/30153A61F2002/30235A61F2002/30405A61F2002/30785A61F2002/30787A61F2220/0008A61F2220/0025A61F2230/0004A61F2230/0019A61F2230/0069
    • An endosseous implant including at least an embedding portion to be embedded in a living tissue, the embedding portion comprising any of a platelike body itself and a desired shape of body obtained by working the platelike body, the platelike body having orderly or disorderly a plurality of substantially straight tubular channels passing through the thickness of the platelike body for permitting the ingrowth and penetration of the adjacent bone tissue therein, the tubular channels including at least two kinds of three different pore diameters of large, medium, and small pore diameters respectively for permitting the ingrowth and penetration of a bone tissue, osteoid tissue, and fibrous tissue, whereby a polycapillary structure is built by the ingrowth and penetration of the at least two of the three kinds of tissues which pass through the thickness of the platelike body after the implantation. According to the endosseous implant, there is provided a polycapillary structure which makes it possible for at least two of the bone, osteoid and fibrous tissue to pass through the thickness of the implant to make a biological dynamic connection of hard and soft tissues by the minial two kinds of the tissue. Futhermore the distribution of the tubular channels is set depending upon the stress imparted to said embedding portion, said distribution being such that channels small in pore diameter correspond to high impact stress, channels medium in pore diameter correspond to medium impact stress, and channels large in pore diameter correspond to low impact stress.
    • 一种植骨植入体,其至少包括嵌入在生物体组织中的嵌入部,所述嵌入部包括片状体本身和通过加工所述板状体而获得的所需形状,所述板状体具有有序或无序的多个 基本上直的管状通道穿过板状体的厚度,以允许其中的相邻骨组织向内生长和穿透,管状通道分别包括至少两种具有大,中,小孔径的三种不同孔径,以允许 骨组织,骨样组织和纤维组织的向内生长和穿透,由此通过在植入后穿过板状体的厚度的三种组织中的至少两种的向内生长和穿透而构建多毛细管结构 。 根据骨内植入物,提供了一种多毛细结构,其使得骨,骨样和纤维组织中的至少两个可以通过植入物的厚度,以通过小型物质进行硬组织和软组织的生物动力学连接 两种组织。 此外,管状通道的分布取决于施加到所述嵌入部分的应力,所述分布使得孔径小的通道对应于高冲击应力,孔径中的通道介质对应于中等冲击应力,并且通道大 孔径对应于低冲击应力。