Polymeric microbeads having characteristics favorable for bone growth, and process including three dimensional printing upon such microbeads
    2.
    发明申请
    Polymeric microbeads having characteristics favorable for bone growth, and process including three dimensional printing upon such microbeads 审中-公开
    具有有利于骨生长的特征的聚合微珠,以及包括在这种微珠上的三维印刷的方法

    公开(公告)号:US20060018942A1

    公开(公告)日:2006-01-26

    申请号:US11139971

    申请日:2005-05-31

    IPC分类号: A61F13/00

    摘要: The invention includes a method of three dimensional printing comprising manufacturing microbeads by an emulsion solvent extraction/evaporation process, followed by three dimensional printing onto powder layers comprising the microbeads. The invention also includes polymeric microbeads containing a bioactive substance or Active Pharmaceutical Ingredient, particularly a substance which stimulates the formation of bone, such as members of the statin family, or growth factors. The microbeads further may contain within themselves smaller particles such as particles of members of the calcium phosphate family, thereby being osteoconductive. The invention also includes aggregates of any of such microbeads together with any of various other types of suitably-sized particles, such as discrete particles of osteoconductive material or porogens. The invention also includes porous biostructures including macrochannels and having advantageous packing of osteoconductive particles.

    摘要翻译: 本发明包括一种三维印刷方法,包括通过乳液溶剂萃取/蒸发方法制造微珠,随后在包含微珠的粉末层上进行三维印刷。 本发明还包括含有生物活性物质或活性药物成分的聚合物微珠,特别是刺激骨形成的物质,例如他汀类物质的成员或生长因子。 微珠还可以在其内部含有较小的颗粒,例如磷酸钙家族的成员颗粒,从而是骨传导的。 本发明还包括任何这种微珠的聚集体以及各种其它类型的适当尺寸的颗粒,例如骨传导性材料或致孔剂的离散颗粒。 本发明还包括多孔生物结构,包括宏通道并具有有利的包裹骨传导性颗粒。