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Immunoassay device enclosing matrixes of antibody spots for cell determinations

  • US 4,829,010 A
  • Filed: 03/13/1987
  • Issued: 05/09/1989
  • Est. Priority Date: 03/13/1987
  • Status: Expired due to Term
First Claim
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1. An immunoassay device comprising:

  • a. a support having substantially planar, unrestricted surface,b. an array of small, closely-spaced, discrete, antibody-coated areas on the support surface;

    c. a cover spaced from the support surface and positioned over an array of antibody-coated areas;

    the cover being secured to the support surface to provide a single, unrestricted, enclosed chamber,the cover having at least one aperture communicating with the interior of the single chamber and with ambient atmosphere for introducing a liquid sample into the chamber to flow across the planar surface without impediment and into engagement with all of said coated areas regardless of the location of the aperture relative to the planar surface, andat least one additional aperture in the cover also communicating with the interior of the chamber and ambient atmosphere to allow air to escape from the chamber upon introduction of the sample into the chamber.

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