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Biomedical assay device

  • US 6,287,595 B1
  • Filed: 03/24/2000
  • Issued: 09/11/2001
  • Est. Priority Date: 06/10/1998
  • Status: Expired due to Fees
First Claim
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1. A structural unit comprising an integrated diagnostic form, the diagnostic form comprising:

  • a polymeric substrate;

    an active ingredient, electrostatically deposited on the surface of said substrate; and

    a porous spreading layer electrostatically deposited on the active ingredient, said spreading layer comprising particles of controlled particle size, wherein said spreading layer serves to retain and spread a sample of liquid which is to be diagnosed.

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