Microfluidic device and a method of manufacturing a microfluidic device
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United States of America Patent
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Nov 17, 2015
Grant Date -
Apr 17, 2014
app pub date -
Oct 11, 2013
filing date -
Oct 12, 2012
priority date (Note) -
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Abstract
A microfluidic device comprising in sequence first, second and third layers of plastics materials. A microfluidic circuit including a laterally extending microfluidic channel is formed at the interface between the first and second layers by surface structure in one or both of the first and second layers. A via is formed in the third layer for supplying or removing fluid to or from the microfluidic circuit. A conduit is formed in the second layer to provide fluid communication between the microfluidic channel and the via. A weld is formed at the interface between the second and third layers in a continuous closed path around the via and forms a fluid-tight seal for fluid flow between the via and the microfluidic circuit.
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