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    • 3. 发明授权
    • Method of loading and distributing cells in a bioreactor of a cell expansion system
    • 在细胞扩增系统的生物反应器中负载和分配细胞的方法
    • US09057045B2
    • 2015-06-16
    • US12968483
    • 2010-12-15
    • David M. GibbonsBrian J. Nankervis
    • David M. GibbonsBrian J. Nankervis
    • C12N5/071C12M1/00C12M3/00C12M1/12C12M3/06
    • C12M29/16C12M23/42C12M23/50C12M25/10C12M25/12C12M27/14
    • A method of distributing a plurality of cells in a bioreactor of a cell expansion system includes manipulating an orientation of the bioreactor such that a net impulse due to gravity acting on the plurality cells in the bioreactor is reduced. One method includes (a) rotating the bioreactor at an angular velocity ω about an axis of rotation and through an angular displacement θ, the bioreactor rotating from a first orientation to a second orientation; (b) holding the bioreactor still at the second orientation for a first period of time t1, wherein t1 substantially equals 2/ω; (c) rotating the bioreactor at the angular velocity ω about the axis of rotation and through the angular displacement θ; and (d) holding the bioreactor still for a second period of time t2, wherein t2 substantially equals t1.
    • 在细胞扩增系统的生物反应器中分配多个细胞的方法包括操纵生物反应器的取向,使得由于重力作用在生物反应器中的多个细胞上的净冲击减少。 一种方法包括:(a)以围绕旋转轴线的角速度ω旋转生物反应器并通过角度位移旋转生物反应器;生物反应器从第一取向旋转到第二取向; (b)将所述生物反应器保持在所述第二方向上第一时间段t1,其中t1基本上等于2 /ω; (c)以关于旋转轴线和角位移的角速度ω旋转生物反应器; 和(d)将生物反应器保持第二时间段t2,其中t2基本上等于t1。