Porous composite containing calcium phosphate and process for producing the same
    8.
    发明授权
    Porous composite containing calcium phosphate and process for producing the same 有权
    含磷酸钙的多孔复合材料及其制备方法

    公开(公告)号:US08039090B2

    公开(公告)日:2011-10-18

    申请号:US10558245

    申请日:2004-05-26

    IPC分类号: B32B3/00

    摘要: A porous composite comprising a porous layer containing a calcium phosphate ceramic, and a dense layer formed on part of the porous layer and having a smaller average pore size than that of the porous layer. The porous composite can be produced by (1) introducing a slurry containing a calcium phosphate ceramic/collagen composite and collagen into a molding die having a high thermal conductivity, (2) rapidly freezing and drying the slurry in the molding die, to form a porous body comprising a porous layer and a dense layer formed on the porous layer, (3) cross-linking collagen in the porous body, and (4) removing the dense layer except for a portion thereof on a surface coming into contact with a soft tissue when implanted in a human body, so that the porous layer is exposed.

    摘要翻译: 一种多孔复合体,其包含含有磷酸钙陶瓷的多孔层,以及形成在所述多孔层的一部分上并且具有比所述多孔层的平均孔径更小的致密层。 多孔复合材料可以通过(1)将含有磷酸钙陶瓷/胶原复合材料和胶原的浆料引入到具有高导热性的成型模具中,(2)快速冷冻并干燥成型模具中的浆料,从而形成 多孔体包括多孔层和形成在多孔层上的致密层,(3)在多孔体中交联胶原,以及(4)在与柔软接触的表面上去除除了其一部分之外的致密层 植入人体时的组织,使得多孔层被暴露。