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Analytic test unit and test system

  • US 10,119,907 B2
  • Filed: 02/08/2013
  • Issued: 11/06/2018
  • Est. Priority Date: 08/11/2010
  • Status: Active Grant
First Claim
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1. An analytic test unit for use in a test instrument for detecting an analyte in a bodily fluid, comprising:

  • a test element having a light-transmissive carrier film;

    a reagent layer applied to the carrier film and to which bodily fluid can be applied, wherein the reagent layer includes a chemical reagent that changes color when it is wetted by the bodily fluid; and

    a spreading layer positioned adjacent the reagent layer and configured to spread the bodily fluid laterally along the regent layer;

    wherein the carrier film can be positioned in a beam path of a photometric measuring unit for optically scanning the reagent layer, the photometric measuring unit having an optical waveguide configured to transmit incident light in a direction substantially perpendicular to the carrier film, further wherein the carrier film comprises a raised surface structure configured to reduce reflections in the beam path of the measuring unit.

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