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Nucleic acid amplification reaction apparatus and method

  • US 5,779,977 A
  • Filed: 03/26/1997
  • Issued: 07/14/1998
  • Est. Priority Date: 07/28/1993
  • Status: Expired due to Term
First Claim
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1. An apparatus for performing a nucleic acid amplification reaction in a reaction mixture, comprising:

  • a capillary tube for containing the reaction mixture;

    a chamber surrounding the capillary tube including at least one input port for receiving fluid of different temperatures and at least one output port through which the fluid can be removed from the chamber;

    a first thermostatted bath coupled to the chamber through the input and output ports, the bath containing a temperature-stabilized body of fluid at a temperature suitable for causing nucleic acid denaturation to occur in the reaction mixture;

    a second thermostatted bath coupled to the input and output ports of the chamber containing a temperature-stabilized body of fluid at a temperature suitable for causing nucleic acid annealing and extension to occur in the reaction mixture; and

    pumping means for alternately moving fluid from the first and second baths into and out of the chamber so as to alternatingly subject the reaction mixture to the denaturation and annealing temperatures.

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