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An immunoassay apparatus having at least two waveguides and method for its use

  • US 4,775,637 A
  • Filed: 12/05/1985
  • Issued: 10/04/1988
  • Est. Priority Date: 12/10/1984
  • Status: Expired due to Term
First Claim
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1. An immunoassay apparatus for analyzing more than one component of a single sample, the apparatus comprising:

  • (a) holding means for containing a liquid sample;

    (b) at least two separate optical waveguide means for allowing propagation of optical signals therethrough;

    (c) light source means for providing each of said waveguide means with input optical signals;

    (d) detecting means for collecting output optical signals from said waveguide means and generating electrical signals representative thereof; and

    (e) analyzing means for receiving and processing said electrical signals from said detecting means;

    wherein each of said waveguide means form part of said holding means thereby exposing a surface of the waveguide means to the sample, and wherein at least one of said exposed waveguide surfaces is coated with a reactant specific to a component for which analysis is desired from said sample.

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