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Microfluidic system including a bubble valve for regulating fluid flow through a microchannel

DC
  • US 8,623,295 B2
  • Filed: 09/26/2011
  • Issued: 01/07/2014
  • Est. Priority Date: 04/17/2002
  • Status: Expired due to Term
First Claim
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1. A microfluidic system comprising:

  • a microfluidic flow channel formed in a substrate and adapted to facilitate analysis or processing of a sample having one or more particles suspended in a suspension medium flowing through the flow channel;

    a first reservoir operatively associated with the flow channel and adapted for dampening or absorbing a pressure pulse propagated across the flow channel; and

    a second reservoir operatively associated with the flow channel and adapted for generating the pressure pulse based on a change in volume or pressure in the second reservoir;

    wherein the flow channel defines a first aperture for connecting the flow channel relative to the first reservoir and a second aperture for connecting the flow channel relative to the second reservoir, wherein the first aperture is substantially opposite the second aperture.

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