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Lateral flow medical diagnostic assay device with sample extraction means

  • US 5,415,994 A
  • Filed: 08/02/1993
  • Issued: 05/16/1995
  • Est. Priority Date: 08/02/1993
  • Status: Expired due to Term
First Claim
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1. A device for detecting the presence of an analyte in a sample contained on a swab, said device comprising:

  • an extraction chamber for extracting the analyte from the sample wherein the extraction chamber is disposed over a sample receiving zone on a matrix, and wherein the extraction chamber includes a bowl portion for receiving a liquid extraction solution and a cylindrical portion for receiving the swab; and

    a matrix having a sample receiving zone for receiving the extraction liquid containing the analyte, a labelling zone having means for specifically labelling the analyte as it passes therethrough and a capture zone having means for specifically binding the labelled analyte thereon, wherein the sample receiving zone, the labelling zone and the capture zone are arranged on the matrix in a liquid flow path.

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