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Glucose level test apparatus

  • US 4,105,522 A
  • Filed: 04/21/1975
  • Issued: 08/08/1978
  • Est. Priority Date: 06/15/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for measuring the glucose level of body fluids comprising means for heating and reacting a small measured liquid quantity of a solution comprising a test fluid body sample and oxidizing agent disposed in a container in quantity to oxidize said sample to a fully oxidized form and leave a measurable remainder of oxidizing agent in said solution, means for controlling the temperature and timing of the oxidation reaction of said solution including means to trigger a timing circuit to hold the temperature at a selected value for a predetermined period, metallic electrodes suspended into contact with the liquid in said container as a primary cell, each of said electrodes having a surface area in direct liquid contact with the said oxidized body fluid whereby to pass the current developed in the reaction product solution electrolytically to said electrodes, means for setting the output circuit of said cell to null voltage and means for measuring the electrical output of said cell in millivolts as redox potential developed in said cell by said oxidized body fluid reaction products.

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