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Device for determination of an analyte in a body fluid using small sample sizes

  • US 6,544,474 B2
  • Filed: 01/05/2001
  • Issued: 04/08/2003
  • Est. Priority Date: 09/30/1997
  • Status: Expired due to Fees
First Claim
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1. A device for testing a body fluid for concentration of an analyte, said device comprising:

  • a hollow fiber capillary tube, said hollow fiber capillary tube comprising a tube wall defining a hollow core, said tube wall comprising a matrix for receiving a fluid sample;

    an indicating reagent contained in said matrix for reacting with an analyte to provide indication of the concentration of the analyte; and

    a housing in which the hollow fiber capillary tube is positioned, said housing having an opening adapted for receiving light from a light source and for directing light reflected from the hollow fiber capillary tube to a light detector.

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