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    • 5. 发明公开
    • Hollow fiber bioreactor culture system and method
    • Einrichtung und Verfahren zur Kultur在einem Hohlfaserbioreaktor。
    • EP0343357A1
    • 1989-11-29
    • EP89106379.4
    • 1989-04-11
    • W.R. Grace & Co.-Conn.
    • Wolfe, Richard AlanHeifetz, Aaron HermanBraatz, James AnthonyDonofrio, David M.
    • C12M3/00C12M1/34
    • C12M25/10C12M29/16C12M41/14C12M41/26Y10S435/813
    • The cell culturing system of the present invention includes a tubular membrane, e.g. hollow fiber, cartridge. Provision is made for the continuous circulation of a nutrient-containing medium through the tube side of the cartridge by pumping the nutrient-containing medium in an endless loop. The cells to be cultured are placed within the cartridge on the shell side where the desired extracellular products are accumulated. Nutrients are assimilated into the cell culture through the semipermeable tubular membranes and waste products are removed by passing through the semipermeable membranes into the recirculating nutrient-containing medium. Within the endless loop (20) are located a circulating pump (24), an oxygenator (26) and a pH probe. The system additionally includes a variable delivery feed pump (22) for continuously injecting fresh nutrient-containing solution into the loop, which feed pump is operated at a rate responsive to the measured pH. A portion of the stream exiting the cartridge is continuously split off at a rate identical to that for the introduction for fresh nutrient-containing solution in order to maintain cellular waste products at a suitably low level. The conventional nutrient-solution preparation reservoir has been eliminated from the loop in order to simplify the system and reduce the potential points of entry for contaminating microorganisms. The membrane cartridge is mounted with its longitudinal axis at approximately 60° with respect to the horizontal.
    • 本发明的细胞培养系统包括管状膜,例如, 中空纤维,墨盒。 规定通过在无限循环中泵送含营养物质介质,使含营养物质的介质通过筒的管侧连续循环。 待培养的细胞被放置在所需细胞外产物积累的壳侧上的筒内。 通过半透性管状膜吸收营养物质进入细胞培养物,并通过将半透膜通入含循环营养物质的介质中除去废物。 无环回路(20)内设有循环泵(24),氧合器(26)和pH探头。 该系统还包括用于将新鲜的含营养物溶液连续注入环中的可变输送进料泵(22),该进料泵以响应于测量的pH的速率运行。 离开料筒的一部分流以与用于新鲜营养液的溶液的引入相同的速率连续分离,以便将细胞废物保持在适当的低水平。 已经从循环中消除了常规营养液制备储存器,以简化系统并减少污染微生物的潜在进入点。 膜片盒的纵轴相对于水平面大约为60度。