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    • 6. 发明授权
    • Skin equivalent culture
    • 皮肤等效文化
    • US08114670B2
    • 2012-02-14
    • US11886113
    • 2006-03-14
    • Paul KempDavid SheringAndrew Shering, legal representativePenny JohnsonDamian Marshall
    • Paul KempDavid SheringPenny JohnsonDamian Marshall
    • C12N5/00G01N33/53A01N63/00A61K9/14
    • C12N5/0698A61L27/20A61L27/225A61L27/24A61L27/3687A61L27/3691A61L27/3804A61L27/3839A61L27/3886A61L27/3895A61L27/54A61L27/60C12N2500/25C12N2500/30C12N2500/32C12N2501/11C12N2501/15C12N2502/094C12N2502/1323C12N2533/56
    • Methods of forming soft connective tissue compositions such as skin equivalents, compositions made by the methods and their uses. In particular, a method of forming a connective tissue equivalent, comprising the steps of: (i) incubating collagen-producing cells in or on a support matrix; (ii) inducing and/or enhancing collagen production by the collagen-producing cells to form a collagenous construct and degradation and replacement of the support matrix; (iii) freeze-drying the construct; and (iv) re-populating the freeze-dried construct with collagen-producing cells and/or epithelial cells and/or endothelial cells and/or mesenchymal cells, thereby forming a connective tissue equivalent, wherein: (a) the collagen-producing cells are substantially fibroblasts; for example human neonatal dermal fibroblasts; (b) the support matrix is a provisional support matrix in which the support matrix is a fibrin matrix, for example formed by thrombin-mediated polymerisation of fibrinogen; and (c) as a result of the collagen production by the collagen-producing cells the provisional fibrin support matrix is digested by the cells and is replaced by collagen, thereby essentially replacing the provisional fibrin matrix with a collagen matrix synthesised in situ by the cells.
    • 形成软结缔组织组合物如皮肤当量的方法,通过方法制备的组合物及其用途。 特别地,形成结缔组织当量的方法,包括以下步骤:(i)在载体基质中或载体上孵育胶原产生细胞; (ii)诱导和/或增强胶原产生细胞的胶原产生以形成胶原构建物并降解和置换支持基质; (iii)冷冻干燥该构造体; 和(iv)用胶原产生细胞和/或上皮细胞和/或内皮细胞和/或间充质细胞重新填充冷冻干燥的构建体,从而形成结缔组织当量,其中:(a)胶原产生细胞 基本上是成纤维细胞; 例如人类新生儿真皮成纤维细胞; (b)载体基质是临时支持基质,其中载体基质是纤维蛋白基质,例如通过凝血酶介导的纤维蛋白原聚合形成; 和(c)作为胶原蛋白产生细胞产生胶原的结果,临床纤维蛋白载体基质被细胞消化并被胶原替代,从而基本上用由细胞原位合成的胶原基质代替临时纤维蛋白基质 。
    • 10. 发明授权
    • Air-bearing center-guiding apparatus and method
    • 空气轴承中心导向装置及方法
    • US4892243A
    • 1990-01-09
    • US247224
    • 1988-09-21
    • Michael LongThomas W. PalonePaul Kemp
    • Michael LongThomas W. PalonePaul Kemp
    • B65H20/10B65H23/02B65H23/032B65H23/24
    • B65H23/02B65H23/032B65H23/24B65H2406/111
    • An air-bearing center-guiding apparatus 10 and a method are disclosed for supporting and laterally center-guiding thin flexible webs of paper or plastic under 15 mils in thickness. The apparatus comprises a web support and guide member 22 having an inner surface and an outer web-facing surface. Parallel rows of elongated spaced-apart guide apertures 34 extend longitudinally along edge regions of the web. Each guide aperture 34 is formed from a cylindrical opening in the web support and guide member 22 and extends substantially perpendicular to the web. Within each aperture a flat-sided dowel 60 is mounted to define a flow passage shaped in cross-section like a segment of a circle 62. Each circular-segment guide aperture 34 has a straight side 54 and a curved side 52 for directing a jet of air against the web edge 56. A plurality of the circular-segment guide apertures 34 develop a guiding force for holding lateral movement of the web to plus or minus 0.001 inch (0.0254 mm). A row of web-support apertures 32, separate from the guide apertures 34, is provided between the rows of guide apertures 34 to form an air bearing for supporting the web.
    • 公开了一种空气轴承中心引导装置10和方法,用于支撑和横向中心地引导厚度小于15密耳的纸或塑料的薄柔性幅材。 该装置包括具有内表面和面向外网的表面的腹板支撑件和引导构件22。 细长间隔开的引导孔34的平行排沿腹板的边缘区域纵向延伸。 每个引导孔34由幅材支撑件和引导构件22中的圆柱形开口形成并基本上垂直于幅材延伸。 在每个孔内,平面定位销60被安装以限定如同圆形部分62的横截面形状的流动通道。每个圆形段导向孔34具有直的侧面54和用于引导射流的弯曲侧面52 多个圆形段导向孔34形成用于将幅材的横向运动保持在正或负0.001英寸(0.0254mm)的引导力。 与引导孔34分开的一排腹板支撑孔32设置在引导孔34的行之间,以形成用于支撑腹板的空气轴承。