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HIGHLY ACCURATE BREATH TEST SYSTEM

  • US 20190346427A1
  • Filed: 12/11/2018
  • Published: 11/14/2019
  • Est. Priority Date: 08/24/2012
  • Status: Active Grant
First Claim
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1. A system for breath test of a person includinga sensor unit comprisinga first sensor element configured to detect the presence and/or concentration of a volatile substance, present in air from a breath flowing through a predefined inlet area and to generate a signal corresponding to the concentration of said substance;

  • a second sensor element configured to detect the presence of a tracer gas in said flowing air;

    an analyzer configured to determine the concentration of said substance in the breath of said person, the determination being based on said signal corresponding to the substance concentration;

    means for generating and controlling said air flow, including a fan or a pump, said means being adapted to interrupt said flow upon the detection of a breath, wherein the criteria for breath detection includes tracer gas detection.

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