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Analytical sensors for biological fluid

  • US 7,918,975 B2
  • Filed: 11/17/2005
  • Issued: 04/05/2011
  • Est. Priority Date: 11/17/2005
  • Status: Active Grant
First Claim
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1. An analyte sensor for determining the concentration of an analyte in a sample of biological fluid, the sensor comprising:

  • a working electrode and a counter electrode;

    a first corner of the sensor at the intersection of a first side edge and a distal edge of the sensor and a second corner of the sensor at the intersection of a second side edge and the distal edge of the sensor; and

    a sample chamber for receiving biological fluid, wherein the sample chamber includes at least a portion of the working and counter electrodes and wherein the sample chamber only has a first and a second entrance for admitting the biological fluid, the first entrance positioned at the first corner and the second entrance positioned at the second corner,wherein the sample chamber is adapted to receive the biological fluid by contacting the first corner or the second corner of the sensor with the biological fluid.

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