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    • 2. 发明申请
    • MICRO FLOW FILTRATION SYSTEM AND FLOW FILTRATION METHOD FOR A FLUID SAMPLE
    • 一种流体样品的微流量过滤系统和流量过滤方法
    • WO2013144090A1
    • 2013-10-03
    • PCT/EP2013/056296
    • 2013-03-25
    • ROCHE DIAGNOSTICS GMBHF. HOFFMANN-LA ROCHE AGORANTH, NorbertLOSLEBEN, NadineLUTZ, SaschaGROSSMANN, Adelbert
    • ORANTH, NorbertLOSLEBEN, NadineLUTZ, SaschaGROSSMANN, Adelbert
    • B01D61/14B01D61/18
    • B01D61/20B01D61/145B01D61/18B01D61/22B01D63/088B01D2313/243B01D2313/90B01D2315/10
    • A flow filtration system (1) for concentration of components contained in a fluid sample comprises a fluid channel (2) being formed by two conduits (4, 5) allowing a bidirectional flow of the fluid sample through the fluid channel (2), a tangential flow filtration module (3) and at least two pairs (8, 9) of piston pumps (6) each having two piston pumps (6), wherein the piston pumps (6) having a piston swept volume forming a reservoir being able to contain the fluid for volumes of up to 100 ml. The tangential flow filtration module (3) is located in the fluid channel (2) so that a fluid flowing through the channel (2) passes through the filtration module (3). At each end (10, 11) of the channel (2) one piston pump (6) of each pair (8, 9) of piston pumps (6) is located in such a manner that the piston pumps are fluidically connected in parallel. The system (1) is arranged and adapted such that during the concentration process at least for a predetermined period of time only one of the pairs (8, 9) of piston pumps (6) is used to drive the fluid through the tangential flow filtration module (3).
    • 用于浓缩包含在流体样品中的组分的流过滤系统(1)包括由允许流体样品​​通过流体通道(2)的双向流动的两个管道(4,5)形成的流体通道(2), 切向流过滤模块(3)和具有两个活塞泵(6)的活塞泵(6)的至少两对(8,9),其中具有形成储存器的活塞扫掠体积的活塞泵(6)能够 含有高达100ml体积的流体。 切向流过滤模块(3)位于流体通道(2)中,使得流过通道(2)的流体通过过滤模块(3)。 在通道(2)的每个端部(10,11)处,活塞泵(6)的每对(8,9)的一个活塞泵(6)以这样的方式定位,使得活塞泵流体地并联连接。 系统(1)被布置和适配成使得在浓缩过程期间至少在预定时间段内,活塞泵(6)的对(8,9)中的仅一个用于驱动流体通过切向流过滤 模块(3)。