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INSTRUMENT FOR MEASURING CARBON MONOXIDE POISONING OF HUMANS USING IN VIVO NIRS TECHNOLOGY

  • US 20080269577A1
  • Filed: 04/25/2007
  • Published: 10/30/2008
  • Est. Priority Date: 04/25/2007
  • Status: Abandoned Application
First Claim
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1. A method for non-invasively determining the relative amounts of a plurality of chromophores in the blood of a human or animal subject, the method comprising the steps of:

  • imparting a wavelength range of light comprising visible and near-infrared components to a light delivery fiberoptic;

    passing the wavelength range of light through a selected tissue sample of the human or animal subject and receiving an unabsorbed portion of the wavelength range of light in a light collecting fiberoptic;

    providing a spectrometer for receiving the unabsorbed portion of the wavelength range of light from the light collecting fiberoptic;

    determining a total absorption spectrum of the selected tissue sample for a plurality of wavelengths selected from the wavelength range of light; and

    comparing an absorption of the plurality of chromophores at a first wavelength to an absorption of the plurality of chromophores at one or more additional wavelengths to determine a relative amount of each of the plurality of chromophores in the blood of a human or animal subject.

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