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    • 6. 发明申请
    • MICRO FLUIDIC DEVICE
    • 微流体装置
    • WO2008075253A1
    • 2008-06-26
    • PCT/IB2007/055045
    • 2007-12-12
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.VAN HAAG, ChrisDE GIER, Ronald, C.VAN DEN BIJGAART, Adrianus, W., D., M.STAN, Gheorghe, S.
    • VAN HAAG, ChrisDE GIER, Ronald, C.VAN DEN BIJGAART, Adrianus, W., D., M.STAN, Gheorghe, S.
    • F16K49/00
    • F15C5/00Y10T137/0971Y10T137/3584Y10T137/3631Y10T137/6416
    • The present invention is directed to a micro fluidic device (1) comprising at least one valve/pump-unit (2) with reduced dead volume, wherein the micro fluid device comprises: - a substrate (3), wherein on the lower surface of said substrate (3) at least two micro channels (4) are arranged to direct a fluid sample (5) flow on the substrate (3), whereby said two micro channels (4) are not end-to-end connected and spaced apart by a valve area (6) of said substrate (3); - at least one flexible membrane (7), wherein the flexible membrane (7) is arranged on the lower surface of said substrate (3); - an actuating element (8) with an upper surface (9) adjacent arranged to the flexible membrane (7); - at least one cover element (10) arranged on the lower surface of the flexible membrane (7), wherein the cover element (10) comprises at least one through going cut-out (11) for receiving an actuating element (8), so that movement of said actuating element (8) causes a pump and/or valve action of the adjacent arranged flexible membrane area to cause or stop a directed fluid flow on said substrate (3); so that a fluid flow between said two not end-to-end connected micro channels is directed among the valve area (6) of the lower surface of the substrate (3) and the upper surface of the flexible membrane (7) through a temporally formable channel (12) formed by the flexible membrane (7) covering the valve area (6), whereby a movement of the actuating element (8) towards to the lower surface of the substrate causes a valve action and a movement opposite to the lower surface of the substrate releases a space in a chamber (13) into which the flexible membrane (7) can engage to form the temporally channel (12) and the upper surface (9) of the actuating element (8) covers at least partly the membrane surface (7) at the valve area (6).
    • 本发明涉及一种微流体装置(1),其包括具有减小的死体积的至少一个阀/泵单元(2),其中所述微流体装置包括: - 基底(3),其中在 所述衬底(3)至少两个微通道(4)布置成将流体样品(5)流动引导到衬底(3)上,由此所述两个微通道(4)不是端到端连接并且间隔开 通过所述基板(3)的阀区域(6); - 至少一个柔性膜(7),其中所述柔性膜(7)布置在所述基底(3)的下表面上; - 具有与所述柔性膜(7)相邻布置的上表面(9)的致动元件(8); - 布置在所述柔性膜(7)的下表面上的至少一个覆盖元件(10),其中所述盖元件(10)包括用于接收致动元件(8)的至少一个贯穿切口(11) 使得所述致动元件(8)的运动导致相邻布置的柔性膜区域的泵和/或阀动作引起或停止所述衬底(3)上的定向流体流动; 使得所述两个未端对端连接的微通道之间的流体流动通过时间上被引导到基板(3)的下表面的阀区域(6)和柔性膜(7)的上表面之间 由柔性膜(7)形成的可覆盖阀区域(6)的可形成通道(12),由此致动元件(8)朝向基板的下表面的运动导致阀动作和与下部 衬底的表面释放腔室(13)中的空间,柔性膜(7)可以接合以形成时间通道(12)并且致动元件(8)的上表面(9)至少部分地覆盖 在阀区域(6)处的膜表面(7)。