Abstract: The invention relates to a valve structure for a microfluidic channel, where the valve serves the opening and closing of a channel (8) on a second level raised through channel pillars from the plane of the microfluidic channel network at the first level of a base plate (1), and where the channel wall is formed of a resilient material. The valve structure consists of a base plate (1) part, of protruding supporting walls (3, 3?) belonging to the base plate (1) and of a resilient part (7) between the supporting walls (3, 3?), within which the channel (8) is formed, and it consists furthermore of pressing appliances (9, 9?) situated on the two sides of the channel, as well as of displacement appliance (10) ensuring the movement of the pressing appliances in the direction of the mid-line of the channel (8).

Abstract: The invention relates to a microfluidic channel (6) with shifted levels comprising a channel pillar (2a, 2b) and a channel bridge (3) which microfluidic channel (6) connects a channel (4a, 4b), situated in a first level of a base plate (1, 11) which contains a microfluidic system, with a second level of said base plate (1, 11). A longitudinal hollow with an edgeless cross-section is connected, as a channel pillar (2a, 2b), with one end, to the ending of the channel (4a, 4b) to be connected and formed in the first level of the base plate (1, 11), furthermore, the channel bridge (3) created at the second level of the base plate (1, 11) and having a cross-section fitting to the channel pillar (2a, 2b) is surrounded by a filling-up material (7) filled in subsequently, and a rounding-off is formed at the junction of the connecting end of the channel bridge (3) and the end of the channel pillar (2a, 2b) extending to the second level.

Abstract: The invention relates to a valve structure for a microfluidic channel, where the valve serves the opening and closing of a channel (8) on a second level raised through channel pillars from the plane of the microfluidic channel network at the first level of a base plate (1), and where the channel wall is formed of a resilient material. The valve structure consists of a base plate (1) part, of protruding supporting walls (3, 3?) belonging to the base plate (1) and of a resilient part (7) between the supporting walls (3, 3?), within which the channel (8) is formed, and it consists furthermore of pressing appliances (9, 9?) situated on the two sides of the channel, as well as of displacement appliance (10) ensuring the movement of the pressing appliances in the direction of the mid-line of the channel (8).

Abstract: The invention relates to a microfluidic channel (6) with shifted levels comprising a channel pillar (2a, 2b) and a channel bridge (3) which microfluidic channel (6) connects a channel (4a, 4b), situated in a first level of a base plate (1, 11) which contains a microfluidic system, with a second level of said base plate (1, 11). A longitudinal hollow with an edgeless cross-section is connected, as a channel pillar (2a, 2b), with one end, to the ending of the channel (4a, 4b) to be connected and formed in the first level of the base plate (1, 11), furthermore, the channel bridge (3) created at the second level of the base plate (1, 11) and having a cross-section fitting to the channel pillar (2a, 2b) is surrounded by a filling-up material (7) filled in subsequently, and a rounding-off is formed at the junction of the connecting end of the channel bridge (3) and the end of the channel pillar (2a, 2b) extending to the second level.