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Heater Unit for Microfluidic Diagnostic System

  • US 20080160601A1
  • Filed: 11/14/2007
  • Published: 07/03/2008
  • Est. Priority Date: 03/24/2006
  • Status: Active Grant
First Claim
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1. A heater unit, comprising:

  • a substrate having embedded therein a plurality of groups of resistive heaters, and at least one temperature sensor per group of heaters; and

    control circuitry for supplying electric current to the plurality of groups of resistive heaters at selected intervals, whereinthe substrate has a surface configured to make thermal contact with a microfluidic cartridge having a plurality of PCR reaction chambers, and to deliver heat from the plurality of groups of resistive heaters to regions of the cartridge, such that each of the groups of resistive heaters delivers heat to a select PCR reaction chamber to perform a reaction, wherein the heat delivery from each group of resistive heaters is controlled by sensing temperature using the at least one temperature sensor of the group.

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