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Solid-phase analytical device and method for using same

  • US 5,160,701 A
  • Filed: 04/15/1991
  • Issued: 11/03/1992
  • Est. Priority Date: 02/18/1986
  • Status: Expired due to Term
First Claim
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1. A solid-phase assay device for use in a binding assay to determine the presence or amount of a specific binding analyte in a fluid sample, comprising a reaction site having:

  • a first control area including means for displaying a first detectable response if the assay results are invalid,a second control area including means for displaying a second detectable response indicative of a valid assay result, andan analyte binding area including means for displaying a third detectable response in the presence of label indicative of the presence or amount of the analyte in the fluid sample,substantially oriented in a single area so that each of the first control area, second control area and analyte binding area is capable of being substantially simultaneously contacted by the fluid sample and by reagents used in the assay without the need for performing a separate control assay,wherein said second and third detectable responses, when present, are separately distinguishable and together form an interactive symbol.

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