Fabrication of bone regeneration scaffolds and bone filler material using a perfusion flow system
    3.
    发明授权
    Fabrication of bone regeneration scaffolds and bone filler material using a perfusion flow system 有权
    使用灌注流系统制造骨再生支架和骨填充材料

    公开(公告)号:US09044530B2

    公开(公告)日:2015-06-02

    申请号:US13720543

    申请日:2012-12-19

    IPC分类号: A61L27/46 A61L27/38 A61L27/56

    摘要: The present disclosure is directed at a process to form bone grafting material. One may provide a porous collagen scaffold and insert the scaffold into a perfusion chamber of a perfusion flow system. This may then be followed by continuously providing a mineralization perfusion fluid flow through the scaffold at a flow rate to provide dynamic intrafibrillar mineralization of the scaffold and form a collagen/hydroxyapatite composite scaffold. One may optionally provide the scaffold with bone tissue forming cells and then deliver a perfusion fluid including oxygen and one or more nutrients through the collagen/hydroxyapatite composite scaffold and to the bone tissue forming cells at a flow rate such that the bone tissue forming cells remodel the collagen/hydroxyapatite composite scaffold and form a bone tissue extracellular matrix. The bone tissue extracellular matrix may then be decellularized to form an acellular bone repair scaffold.

    摘要翻译: 本公开涉及形成骨移植材料的方法。 可以提供多孔胶原支架并将支架插入灌注流系统的灌注腔中。 然后可以继续以流速连续提供通过支架的矿化灌注流体流动,以提供支架的动态纤维内矿化并形成胶原/羟基磷灰石复合支架。 人们可以选择性地向支架提供骨组织形成细胞,然后以包括骨组织形成细胞改造的流速将包含氧和一种或多种营养物的灌注流体通过胶原/羟基磷灰石复合支架递送到骨组织形成细胞 胶原/羟基磷灰石复合支架,形成骨组织细胞外基质。 然后可以将骨组织细胞外基质脱细胞化以形成无细胞骨修复支架。

    Hybrid tissue scaffold for tissue engineering
    7.
    发明授权
    Hybrid tissue scaffold for tissue engineering 有权
    组织工程杂交组织支架

    公开(公告)号:US08815594B2

    公开(公告)日:2014-08-26

    申请号:US13712583

    申请日:2012-12-12

    IPC分类号: C12N5/071 A61L31/14

    摘要: A hybrid tissue scaffold is provided which comprises a porous primary scaffold having a plurality of pores and a porous secondary scaffold having a plurality of pores, wherein the secondary scaffold resides in the pores of the primary scaffold to provide a hybrid scaffold. The pores of the porous primary scaffold may have a pore size in a range of 0.50 mm to 5.0 mm, and the pores of the porous secondary scaffold may have a pore size in a range of 50 μm to 600 μm. The primary scaffold may provide 5% to 30% of a volume of the hybrid scaffold.

    摘要翻译: 提供了一种混合组织支架,其包括具有多个孔的多孔性主要支架和具有多个孔的多孔辅助支架,其中所述辅助支架位于所述主要支架的孔中以提供混合支架。 多孔性主支架的孔的孔径可以在0.50mm〜5.0mm的范围内,多孔性二级支架的孔的孔径可以在50μm〜600μm的范围内。 主要支架可以提供混合支架体积的5%至30%。