Patent ID: 8124030
Filing Date: 2012-02-28
Classification: B01F,B01L,F15C,Y10T

Abstract:
1. A microfluidic device comprising: a substrate configured for rotation about an axis, the substrate having a first chamber and a second chamber disposed therein, the first and second chambers configured to carry a liquid; an output chamber disposed in the substrate and located radially outward of the first chamber and the second chamber; a vent hole operatively connected to the output chamber; wherein the first chamber includes a fluid transfer channel in communication with the output chamber and a ventilation channel, absent a capillary junction, in communication with the output chamber, the ventilation channel being coupled to a radially inward portion of the first chamber and configured to contain liquid from the output chamber and wherein the second chamber includes a fluid transfer channel in communication with the output chamber and a ventilation channel in communication with the output chamber, the ventilation channel being coupled to a radially inward portion of the second chamber and configured to contain liquid from the output chamber.