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Apparatus for body fluid analysis using surface-textured optical materials

  • US 20090252649A1
  • Filed: 06/25/2008
  • Published: 10/08/2009
  • Est. Priority Date: 10/31/2003
  • Status: Abandoned Application
First Claim
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1. A sensor element for use in measuring characteristics of a body fluid, comprising:

  • a supporting body;

    an optical material body supported by the supporting body and having a surface-textured area and a light transit area;

    an analyte-sensitive chemistry disposed upon the surface-textured area, the analyte-sensitive chemistry having at least one optical property sensitive to binding of an analyte thereto;

    a body fluid sample receiving area, the surface-textured area being presented into the body fluid receiving area; and

    a light coupling area, the light transit area of the optical material body being presented at the light coupling area;

    wherein the surface-textured area comprises a field of projecting elongated optical structures providing an increased effective sensing area and supporting multiple ray reflections responsive to the optical property of the analyte-sensitive chemistry.

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