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公开(公告)号：US5593130A
公开(公告)日：1997-01-14
申请号：US605166
申请日：1996-03-06
申请人： Thord Hansson , Stefan Sjolander
发明人： Thord Hansson , Stefan Sjolander
摘要： A valve of the membrane valve type comprises a valve body with two fluid flow channels (5, 5') separated by a land portion which forms a valve seat (6) having a sealing surface for co-operation with a flexible membrane (7) mounted over a duct (8) which opens in front of the valve seat and is arranged for fluid pressure actuation of the membrane between a closing position, where the membrane (7) sealingly contacts the valve seat (6), and an opening position where there is a flow channel communicating space ( 11) between the valve seat (6) and the membrane (7). The valve is characterized in that the sealing surface of the valve seat (6) comprises (i) a primary sealing surface (10) located nearest and facing the membrane, and (ii) a secondary sealing surface (12, 12') provided on each fluid channel side of the valve seat, so that when the valve is closing, the membrane (7) successively seals against the primary sealing surface (10) and the secondary sealing surfaces (12, 12'), and, inversely, when the valve is opening, the member (7) is successively separated from the secondary sealing surfaces (12, 12') and the primary sealing surface (10).
摘要翻译： PCT No.PCT / SE94 / 00824 Sec。 371日期1996年3月6日 102（e）1996年3月6日PCT PCT 1994年9月6日PCT公布。 出版物WO95 / 07425 日期1995年3月16日一种膜阀类型的阀包括阀体，该阀体具有两个流体通道（5,5'），两个流体通道（5,5'）由陆地部分分开，所述陆地部分形成具有密封表面的阀座（6），该密封表面用于与 柔性膜（7）安装在在阀座前面开口的管道（8）上，并布置成用于在膜（7）密封地接触阀座（6）的关闭位置之间的膜的液体压力致动， 以及在阀座（6）和膜（7）之间存在流路连通空间（11）的打开位置。 阀的特征在于，阀座（6）的密封表面包括（i）位于最靠近膜的主密封表面（10），和（ii）设置在第二密封表面上的第二密封表面（12,12'） 阀座的每个流体通道侧，使得当阀门关闭时，膜（7）依次密封主密封表面（10）和第二密封表面（12,12'），相反地，当 阀门打开，构件（7）从次密封表面（12,12'）和主密封表面（10）连续分离。
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公开(公告)号：US06698454B2
公开(公告)日：2004-03-02
申请号：US10001246
申请日：2001-11-01
申请人： Stefan Sjölander , Thord Hansson
发明人： Stefan Sjölander , Thord Hansson
IPC分类号： F16K3112
CPC分类号： G01N35/1097 , B01L3/502707 , B01L3/502738 , B01L2200/0689 , B01L2300/0874 , B01L2400/0655 , F16K7/126 , F16K7/17 , G01N21/05 , G01N21/553 , G01N2021/0346 , Y10T29/49405 , Y10T29/49417 , Y10T29/49425 , Y10T29/49426 , Y10T29/49428 , Y10T137/87893
摘要： The present invention discloses a valve integrally associated with a microfluidic transport assembly that is useful for regulating the flow of a liquid sample through an analytical instrument such as, for example, a biosensor. The valve integrally associated with a microfluidic liquid transport assembly, includes: a first rigid layer having substantially planar and opposing first and second surfaces; a second rigid layer having substantially planar and opposing third and fourth surfaces, the third surface of the second rigid layer being substantially coplanar and integrally bonded to the second surface of the first rigid layer; a first passageway defined by a groove, the groove being along the second surface of the first rigid layer and bounded by the third surface of the second rigid layer, the first passageway being adapted to flow a liquid sample therethrough, a valve seat having a substantially planar plateau surface, the valve seat being within the passageway and integrally connected to the first rigid layer such that the plateau surface is substantially planar to and interposed between the first and second surfaces of the first rigid layer; and a flexible membrane opposite the valve seat and integrally associated with a first membrane through hole of the second rigid layer, the flexible membrane having a passageway surface that is either (i) substantially coplanar to the second surface of the first rigid layer when the valve is in an open position, or (ii) bulged with a central portion thereof being substantially coplanar to the plateau surface of the valve seat when the valve is in a closed position. The present invention is also directed to methods of manufacturing of the same.
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公开(公告)号：US06988317B2
公开(公告)日：2006-01-24
申请号：US10715880
申请日：2003-11-18
申请人： Stefan Sjölander , Thord Hansson
发明人： Stefan Sjölander , Thord Hansson
IPC分类号： B21K1/20
CPC分类号： G01N35/1097 , B01L3/502707 , B01L3/502738 , B01L2200/0689 , B01L2300/0874 , B01L2400/0655 , F16K7/126 , F16K7/17 , G01N21/05 , G01N21/553 , G01N2021/0346 , Y10T29/49405 , Y10T29/49417 , Y10T29/49425 , Y10T29/49426 , Y10T29/49428 , Y10T137/87893
摘要： The present invention discloses a valve integrally associated with a microfluidic transport assembly that is useful for regulating the flow of a liquid sample through an analytical instrument such as, for example, a biosensor. The valve integrally associated with a microfluidic liquid transport assembly, includes: a first rigid layer having substantially planar and opposing first and second surfaces; a second rigid layer having substantially planar and opposing third and fourth surfaces, the third surface of the second rigid layer being substantially coplanar and integrally bonded to the second surface of the first rigid layer; a first passageway defined by a groove, the groove being along the second surface of the first rigid layer and bounded by the third surface of the second rigid layer, the first passageway being adapted to flow a liquid sample therethrough, a valve seat having a substantially planar plateau surface, the valve seat being within the passageway and integrally connected to the first rigid layer such that the plateau surface is substantially planar to and interposed between the first and second surfaces of the first rigid layer; and a flexible membrane opposite the valve seat and integrally associated with a first membrane through hole of the second rigid layer, the flexible membrane having a passageway surface that is either (i) substantially coplanar to the second surface of the first rigid layer when the valve is in an open position, or (ii) bulged with a central portion thereof being substantially coplanar to the plateau surface of the valve seat when the valve is in a closed position. The present invention is also directed to methods of manufacturing of the same.
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