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    • 2. 发明申请
    • Cell Growth Inhibiting Film, Medical Instrument and Digestive System Stent
    • 细胞生长抑制膜,医疗器械和消化系统支架
    • US20070275156A1
    • 2007-11-29
    • US10580648
    • 2004-11-26
    • Masaru TanakaMasatsugu ShimomuraYoshihide Toyokawa
    • Masaru TanakaMasatsugu ShimomuraYoshihide Toyokawa
    • A61L31/00A61L27/00
    • A61L31/146
    • A cell growth inhibiting film including a resin and having a porous structure formed at least on its surface, a cell growth inhibiting method including causing the surface of a film including a resin and having a porous structure formed at least on its surface to contact cells to inhibit growth of the cells in the contact area, a medical instrument including a medical instrument substrate and a film including a resin and having a porous structure formed at least on its surface, in which the surface of the medical instrument substrate is entirely or partially covered with the film, and a digestive system stent including a stent substrate and a film including a resin and having a porous structure formed by through-holes with an average pore size of 0.1 to 20 μm and a coefficient of variation in pore size of 30% or less, in which the stent substrate is covered with the film. According to the present invention, a material exhibiting cell growth inhibitory effects without using a physiologically active substance and suitable for forming a medical instrument, and a digestive system stent which secures a digestive system tubular cavity in the body and allows a digestive fluid and digestive enzymes contained therein to pass through, but blocks cancer cells, can be provided.
    • 至少在其表面形成有具有多孔结构的树脂的细胞生长抑制膜,细胞生长抑制方法,包括使包含树脂的膜的表面至少在其表面形成的多孔结构的表面与细胞接触 抑制接触区域中的细胞生长,包括医疗仪器基板的医疗器械和包括树脂的膜,并且至少在其表面上形成有多孔结构,其中医疗器械基板的表面完全或部分覆盖 以及包括支架基板和包含树脂的薄膜的消化系统支架,并且具有通过平均孔径为0.1〜20μm的通孔形成的多孔结构,孔径的变异系数为30% 或更少,其中支架基底被膜覆盖。 根据本发明,不使用生理活性物质并且适于形成医疗器械的细胞生长抑制作用的材料,以及消化系统支架,其将消化系统管状空腔固定在体内并允许消化液和消化酶 可以提供包含在其中的通道,但可以阻止癌细胞。