Method and instruments for non-invasive analyte measurement
First Claim
1. A method of determining an analyte concentration in a tissue of a subject, the subject including an eye with an occular surface and a conjunctiva surface, comprising the steps:
- a. detecting naturally occurring mid-infrared radiation emitted from the conjunctiva without contact with the ocular surface using a non-invasive instrument comprising a mid-infrared detector;
b. comparing a radiation signature of said mid-infrared radiation to a radiation signature of mid-infrared radiation corresponding to an analyte concentration; and
c. analyzing said radiation signature of said mid-infrared radiation from said subject to determine said analyte concentration in a tissue of said subject.
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Abstract
The present invention is related to optical non-invasive methods and instruments to detect the level of analyte concentrations in the tissue of a subject. The spectra of mid-infrared radiation emitted from a subject'"'"'s body are altered corresponding to the concentration of various compounds within the radiating tissue. In one aspect of the invention, an instrument measures the level of mid-infrared radiation from the subject'"'"'s body surface, such as the eye, and determines a specific analyte'"'"'s concentration based on said analyte'"'"'s distinctive mid-infrared radiation signature.
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Citations
7 Claims
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1. A method of determining an analyte concentration in a tissue of a subject, the subject including an eye with an occular surface and a conjunctiva surface, comprising the steps:
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a. detecting naturally occurring mid-infrared radiation emitted from the conjunctiva without contact with the ocular surface using a non-invasive instrument comprising a mid-infrared detector; b. comparing a radiation signature of said mid-infrared radiation to a radiation signature of mid-infrared radiation corresponding to an analyte concentration; and c. analyzing said radiation signature of said mid-infrared radiation from said subject to determine said analyte concentration in a tissue of said subject. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification