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Single use microfluidic valve

  • US 9,127,782 B2
  • Filed: 04/23/2010
  • Issued: 09/08/2015
  • Est. Priority Date: 04/30/2009
  • Status: Active Grant
First Claim
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1. A microfluidic valve comprising:

  • a substrate;

    a microchannel within said substrate;

    a membrane arranged on said substrate so as to seal off said microchannel, said membrane including a resistive element, and at least one face of said membrane including at least one groove forming a predetermined area of weakness, said groove extending at least in part directly opposite said microchannel,wherein said resistive element is arranged in and extends through said groove such that, when an electric control current flows through said resistive element, said resistive element expands due to an effect of heat produced by the flow of said electric control current to cause a rupture of at least one part of said membrane.

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