Patent ID: 9555408
Date: 2017-01-31
CPC Classifications: B01L,G01N,Y10T

Claim:
1. A device comprising: an upstream microfluidic channel portion having a cross-sectional dimension of less than 1 mm; a first liquid positioned in the upstream microfluidic channel portion; a downstream microfluidic channel portion having a cross-sectional dimension of less than 1 mm; a second liquid positioned in the downstream microfluidic channel portion; and a component of a vent valve comprising a port positioned between the upstream and downstream microfluidic channel portions, wherein the device can be configured such that when the port is in an open position, the second liquid in the downstream microfluidic channel portion can be flowed without substantially flowing the first liquid, and when the port is in a closed position, the first liquid from the upstream microfluidic channel portion can be flowed to the downstream microfluidic channel portion.