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Test carrier for determining an analyte in a blood sample, process for making the carrier and use thereof

  • US 5,169,787 A
  • Filed: 07/27/1988
  • Issued: 12/08/1992
  • Est. Priority Date: 08/04/1987
  • Status: Expired due to Term
First Claim
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1. Test carrier for determination of an analyte in a whole blood sample comprising a two sided erythrocyte separation means, a first side of said erythrocyte separation means being in fluid communication with a means for the application of blood and a second side of said erythrocyte separation means being in fluid communication with an evaluation means, said erythrocyte separation means comprising an integral composite structure having a first zone, a second zone and a transition region between said first and second zones, said first zone containing a polymeric film former, kieselguhr and a pigment, said first zone having applied thereon said second zone containing a liquid coated polymeric film former thereby forming said transition region of said integral composite structure between said first and second zones, said first zone of said erythrocyte separation means facing said first side and said second zone of said erythrocyte separation means facing said second side.

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