Osteoinductive demineralized cancellous bone
    8.
    发明授权
    Osteoinductive demineralized cancellous bone 有权
    骨诱导软骨松质骨

    公开(公告)号:US08734525B2

    公开(公告)日:2014-05-27

    申请号:US12140025

    申请日:2008-06-16

    IPC分类号: A61K35/32

    摘要: An osteoinductive demineralized bone matrix, corresponding osteoimplants, and methods for making the osteoinductive demineralized bone matrix are disclosed. The osteoinductive demineralized bone matrix may be prepared by providing demineralized bone and altering the collagenous structure of the bone. The osteoinductive demineralized bone matrix may also be prepared by providing demineralized bone and compacting the bone, for example via mechanical compaction, grinding into a particulate, or treatment with a chemical. Additives such as growth factors or bioactive agents may be added to the osteoinductive demineralized bone matrix. The osteoinductive demineralized bone matrix may form an osteogenic osteoimplant. The osteoimplant, when implanted in a mammalian body, may induce at the locus of the implant the full developmental cascade of endochondral bone formation including vascularization, mineralization, and bone marrow differentiation. The osteoinductive demineralized bone matrix may also be used as a delivery device to administer bioactive agents.

    摘要翻译: 公开了一种骨诱导的软骨骨架,相应的骨关节植入物以及用于制造骨诱导性软骨骨架的方法。 可以通过提供软化骨和改变骨的胶原结构来制备骨诱导的软骨骨架。 还可以通过提供脱矿质骨和压实骨,例如通过机械压实,研磨成颗粒或用化学品处理来制备骨诱导的软化骨基质。 添加剂如生长因子或生物活性剂可以加入到骨诱导的软化骨基质中。 骨诱导的骨质疏松骨质可形成成骨植骨。 当植入植入哺乳动物体内的植骨植入物可能在植入物的位置诱导软骨内骨形成的完全发育级联,包括血管化,矿化和骨髓分化。 骨诱导的软化骨基质也可以用作施用生物活性剂的递送装置。

    Bone graft comprising a demineralized bone matrix and a stabilizing agent
    9.
    发明授权
    Bone graft comprising a demineralized bone matrix and a stabilizing agent 有权
    骨移植物包含脱矿骨基质和稳定剂

    公开(公告)号:US07959941B2

    公开(公告)日:2011-06-14

    申请号:US11622955

    申请日:2007-01-12

    IPC分类号: A61F2/28

    摘要: An improved demineralized bone matrix (DBM) or other matrix composition is provided that has been mixed with a stabilizing agent that acts as (1) a diffusion barrier, (2) a enzyme inhibitor, (3) a competitive substrate, or (4) a masking moiety. A diffusion barrier acts as a barrier so as to protect the osteoinductive factors found in DBM from being degraded by proteolytic and glycolytic enzymes at the implantation site. Stabilizing agents may be any biodegradable material such as starches, modified starches, cellulose, dextran, polymers, proteins, and collagen. As the stabilizing agents degrades or dissolves in vivo, the osteoinductive factors such as TGF-.beta., BMP, and IGF are activated or exposed, and the activated factors work to recruit cells from the preivascular space to the site of injury and to cause differentiation into bone-forming cells. The invention also provides methods of preparing, testing, and using the inventive improved osteodinductive matrix compositions.

    摘要翻译: 提供了与稳定剂混合的改进的脱矿质骨基质(DBM)或其它基质组合物,其作为(1)扩散阻挡层,(2)酶抑制剂,(3)竞争性底物,或(4) 掩蔽部分。 扩散屏障作为屏障,以保护DBM中发现的骨诱导因子不被植入部位的蛋白水解酶和糖酵解酶降解。 稳定剂可以是任何可生物降解的材料,例如淀粉,改性淀粉,纤维素,葡聚糖,聚合物,蛋白质和胶原蛋白。 当稳定剂在体内降解或溶解时,骨诱导因子如TGF-β,BMP和IGF被活化或暴露,并且活化因子用于将细胞从血管内空间募集到损伤部位并导致 分化成骨形成细胞。 本发明还提供了制备,测试和使用本发明改进的骨吸收性基质组合物的方法。

    Bone Graft
    10.
    发明申请
    Bone Graft 有权
    骨移植

    公开(公告)号:US20080145392A1

    公开(公告)日:2008-06-19

    申请号:US11622955

    申请日:2007-01-12

    IPC分类号: A61F2/28 A61K35/32 A61P19/00

    摘要: An improved demineralized bone matrix (DBM) or other matrix composition is provided that has been mixed with a stabilizing agent that acts as (1) a diffusion barrier, (2) a enzyme inhibitor, (3) a competitive substrate, or (4) a masking moiety. A diffusion barrier acts as a barrier so as to protect the osteoinductive factors found in DBM from being degraded by proteolytic and glycolytic enzymes at the implantation site. Stabilizing agents may be any biodegradable material such as starches, modified starches, cellulose, dextran, polymers, proteins, and collagen. As the stabilizing agents degrades or dissolves in vivo, the osteoinductive factors such as TGF-.beta., BMP, and IGF are activated or exposed, and the activated factors work to recruit cells from the preivascular space to the site of injury and to cause differentiation into bone-forming cells. The invention also provides methods of preparing, testing, and using the inventive improved osteodinductive matrix compositions

    摘要翻译: 提供了与稳定剂混合的改进的脱矿质骨基质(DBM)或其它基质组合物,其作为(1)扩散阻挡层,(2)酶抑制剂,(3)竞争性底物,或(4) 掩蔽部分。 扩散屏障作为屏障,以保护DBM中发现的骨诱导因子不被植入部位的蛋白水解酶和糖酵解酶降解。 稳定剂可以是任何可生物降解的材料,例如淀粉,改性淀粉,纤维素,葡聚糖,聚合物,蛋白质和胶原蛋白。 当稳定剂在体内降解或溶解时,骨诱导因子如TGF-β,BMP和IGF被活化或暴露,并且活化因子用于将细胞从血管内空间募集到损伤部位并导致 分化成骨形成细胞。 本发明还提供了制备,测试和使用本发明改进的骨吸收性基质组合物的方法