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Breath-based diagnostic device including an array of multiple sensors

  • US 6,712,770 B2
  • Filed: 05/23/2002
  • Issued: 03/30/2004
  • Est. Priority Date: 05/23/2001
  • Status: Active Grant
First Claim
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1. A breath-based diagnostic device comprising:

  • (a) a multi-sensor array comprising a plurality of sensory devices each reacting with specific volatile organic vapor in breath to generate a signal, wherein each of the sensory devices reacts with the volatile organic vapor directly and/or through a sensory receptor coated on the sensory device;

    (b) a database storage device for information storage;

    (c) a signal processing unit comprising a oscillator coupled to each of the sensory devices, a frequency counter coupled to the oscillator for counting oscillation frequency, and a digital/analog recorder for recording digital/analog data; and

    (d) a microprocessor for receiving a signal generated by the multi-sensor array and comparing the signal with information stored in the database.

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