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Microfluidic device

  • US 10,427,159 B2
  • Filed: 03/30/2018
  • Issued: 10/01/2019
  • Est. Priority Date: 04/17/2002
  • Status: Expired due to Fees
First Claim
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1. A microfluidic device, comprising:

  • a microchannel having an interior bounded by a side wall, an inlet, a switching region, and a plurality of outlet channels downstream of the switching region, the microchannel formed in a microfluidic chip substrate and configured to accommodate a flow of liquid through the microchannel;

    a valve operatively coupled to the switching region comprising a sealed reservoir, a side passage extending between the reservoir and the interior of the microchannel via an aperture in the side wall, the side passage configured to accommodate a volume of liquid between the interior of the microchannel and the reservoir; and

    an actuator integrated in the microfluidic chip, the actuator configured to increase an internal pressure of the reservoir and move at least a portion of the volume of the liquid from the side passage into the microchannel to deflect a portion of the liquid flowing through the microchannel.

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