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Non-invasive blood glucose monitor

  • US 20040162470A1
  • Filed: 02/13/2003
  • Published: 08/19/2004
  • Est. Priority Date: 02/13/2003
  • Status: Active Grant
First Claim
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1. A micro-optical-mechanical-electro-system (MOMES)-based non-invasive blood glucose monitor comprising:

  • a micromachined infrared spectrometer array each for continuously dividing a monochromatic infrared light in a wavelength range within 0.8 to 25 micron from an infrared light, a micromachined infrared mechanical modulator array each for turning the monochromatic infrared light into an alternating monochromatic infrared light, at least one micromachined infrared tunable filter for selecting the back-diffused alternating monochromatic infrared light emitted from a measured blood subject that is illuminated by the alternating monochromatic infrared light, three driver circuits for actuating the spectrometer array, mechanical modulator array, and tunable filter, respectively, at least one infrared detector for converting the back-diffused alternating monochromatic infrared light into an alternating electronic signal, at least one infrared light source for irradiating the infrared light, at least one collimator enabling the incoming infrared light to run parallel to its optic axis, and a photo-integrated circuit (IC) combining with the infrared detector for synchronous detection and amplification of the electronic signal generated by the synchronous detection.

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