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    • 4. 发明授权
    • FABRICATION OF THREEDIMENSIONAL VASCULARIZED TISSUE USING MICROFABRICATED TWO-DIMENSIONAL MOLDS
    • 三维血管织物由二维MICRO制成的表格生产使用
    • EP1187909B1
    • 2005-02-02
    • EP00930192.0
    • 2000-04-28
    • MASSACHUSETTS GENERAL HOSPITAL
    • VACANTI, Joseph, P.BORENSTEIN, Jeffrey T.PIEN, Homer, Dr.CUNNUNGHAM, Brian T.
    • C12N5/00A61L27/38
    • A61L27/3604A61K35/12A61K35/44A61L27/38B33Y70/00C12N5/0671C12N5/0697C12N2502/14C12N2502/28C12N2535/10
    • A method and materials to create complex vascularized living tissue in three dimensions from a two-dimension microfabricated mold has been developed. The method involved creating a two dimensional surface having a branching structure etched into the surface. The pattern begins with one or more large channels which serially branch into a large array of channels as small as individual capillaries, then converge to one or more large channels. The etched surface serves a template within a mold formed with the etched surface for the circulation of an individual tissue or organ. Living vascular cells are then seeded onto the mold, where they form living vascular channels based on the pattern etched in the mold. Once formed and sustained by their own matrix, the top of the mold is removed. The organ or tissue specific cells are then added to the etched surface, where they attach and proliferate to form a thin, vascularized sheet of tissue. The tissue can then be gently lifted from the mold using techniques such as fluid flow and other supporting material, as necessary. The tissue can then be systematically folded and compacted into a three-dimensional vascularized structure. This structure can then be implanted into animals or paitents by directly connecting the blood vessels to flow into and out of the device. Immediate perfusion of oxygenated blood occurs, which allows survival and function of the entire living mass.
    • 的方法和材料,以在从二维微制造模具三维创建复杂的血管化活组织已经研制成功。 该方法涉及产生具有蚀刻到表面上的分支结构的二维表面。 该图案与一个或多个大的通道哪个串联分支成一个大的阵列的通道小到单个毛细管的开始,然后收敛到一个或多个大的通道。 蚀刻表面供应以用于个体的组织或器官的循环蚀刻表面形成的模具中的模板。 然后活血管细胞接种到模具中,在此它们形成基于蚀刻到模具上的图案住血管通道。 一旦形成并以自己的矩阵持续,模具的顶部被去除。 然后将器官或组织特异性的细胞加入到蚀刻的表面,在那里它们附着和增殖,以形成组织的薄的血管化片材。 组织然后可以轻轻地从使用的技术的模具抬起:如流体流动和其他辅助材料,如必要的。 组织然后可以系统地折叠并压制成三维血管结构。 该结构可以随后通过直接连接血管流入和流出所述装置的被植入到动物或paitents。 含氧血的灌注立即发生,这使得整个生活质量的生存和功能。