Non-invasive methods of using spectral information in determining analyte concentrations
First Claim
1. A non-invasive method of determining the concentration of an analyte using Raman spectral information, the method comprising the acts of:
- applying a high-intensity, narrow band of light to a first side of tissue, the high-intensity light entering the tissue at a first side and generating a Raman signal;
providing a Raman-generating material adapted to generate Raman signals;
reflecting the high-intensity light from the Raman-generating material so as to produce an additional Raman signal that passes towards the first side of the tissue;
reflecting the Raman signal generated from the high-intensity light entering the tissue towards the first side of the tissue via the Raman-generating material;
collecting the Raman signal generated from the high-intensity light entering the tissue and the additional Raman signal generated from the Raman-generating material; and
determining the analyte concentration using information from the collected Raman signals.
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Accused Products
Abstract
A non-invasive method of determining the concentration of an analyte uses Raman or fluorescence spectral information. A high-intensity band of light is applied to one side of skin tissue. The high-intensity light enters the skin tissue and generates a Raman or fluorescence signal. A Raman-generating material or fluorescence-generating material is placed in a location nearest the other side of skin tissue. The Raman-generating or fluorescence-generating material is located generally opposite of the entry of the applied high-intensity light. The Raman or fluorescence signal is collected and the analyte concentration is determined using the collected Raman signal.
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Citations
52 Claims
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1. A non-invasive method of determining the concentration of an analyte using Raman spectral information, the method comprising the acts of:
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applying a high-intensity, narrow band of light to a first side of tissue, the high-intensity light entering the tissue at a first side and generating a Raman signal; providing a Raman-generating material adapted to generate Raman signals; reflecting the high-intensity light from the Raman-generating material so as to produce an additional Raman signal that passes towards the first side of the tissue; reflecting the Raman signal generated from the high-intensity light entering the tissue towards the first side of the tissue via the Raman-generating material; collecting the Raman signal generated from the high-intensity light entering the tissue and the additional Raman signal generated from the Raman-generating material; and determining the analyte concentration using information from the collected Raman signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A non-invasive method of diagnosis using Raman spectral information, the method comprising the acts of:
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applying a high-intensity, narrow band of light to a first side of tissue, the high-intensity light entering the tissue at a first side and generating a Raman signal; providing a Raman-generating material adapted to generate Raman signals; reflecting the high-intensity light from the Raman-generating material so as to produce an additional Raman signal that passes towards the first side of the tissue; reflecting the Raman signal generated from the high-intensity light entering the tissue towards the first side of the tissue via the Raman-generating material; collecting the Raman signal generated from the high-intensity light entering the tissue and the additional Raman signal generated from the Raman-generating material; and using information from the collected Raman signals to perform a general diagnosis. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A non-invasive method of determining the concentration of an analyte using fluorescence spectral information, the method comprising the acts of:
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applying a high-intensity, narrow band of light to a first side of tissue, the high-intensity light entering the tissue at a first side and generating a fluorescence signal; providing a fluorescence-generating material adapted to generate fluorescence signals; reflecting the high-intensity light from the fluorescence-generating material so as to produce an additional fluorescence signal towards the first side of the tissue; reflecting the fluorescence signal generated from the high-intensity light entering the tissue towards the first side of the tissue via the fluorescence-generating material; collecting the fluorescence signal generated from the high-intensity light entering the tissue and the additional fluorescence signal generated from the fluorescence-generating material; and determining the analyte concentration using information from the collected fluorescence signals. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A non-invasive method of diagnosis using fluorescence spectral information, the method comprising the acts of:
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applying a high-intensity light to a first side of tissue, the high-intensity light entering the tissue at a first side and generating a fluorescence signal; providing a fluorescence-generating material adapted to generate fluorescence signals; reflecting the high-intensity light from the fluorescence-generating material so as to produce additional fluorescence signal that passes towards the first side of the tissue; reflecting the fluorescence signal generated from the high-intensity light entering the tissue towards the first side of the tissue via the fluorescence-generating material; collecting the fluorescence signal generated from the high-intensity light entering the tissue and the additional fluorescence signal generated from the fluorescence-generating material; and using information from the collected fluorescence signals to perform a general diagnosis. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. A non-invasive method of determining the concentration of an analyte using Raman spectral information, the method comprising the acts of:
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pinching an area of skin tissue; placing a Raman-generating material near or around the pinched skin tissue, the Raman-generating material forming at least one opening therethrough; applying a high-intensity, narrow band of light to the skin tissue through the at least one opening, the high-intensity light entering the pinched skin tissue and generating a Raman signal; reflecting the high-intensity light and Raman signal that pass through the pinched skin tissue back into the pinched skin tissue via the Raman-generating material; collecting the Raman signal generated from the high-intensity light entering the skin tissue and an additional Raman signal generated from the Raman-generating material; and using information from the collected Raman signals to perform a general diagnosis. - View Dependent Claims (44, 45, 46, 47)
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48. A non-invasive method of determining the concentration of an analyte using fluorescence spectral information, the method comprising the acts of:
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pinching an area of skin tissue; placing a fluorescence-generating material near or around the pinched skin tissue, the fluorescence-generating material forming at least one opening therethrough; applying a high-intensity narrow band of light to the skin tissue through the at least one opening, the high-intensity light entering the pinched skin tissue and generating a fluorescence signal; reflecting the high-intensity light and fluorescence signal that pass through the pinched skin tissue back into the pinched skin tissue via the fluorescence-generating material; collecting the fluorescence signal generated from the high-intensity light entering the skin tissue and an additional fluorescence signal generated from the fluorescence-generating material; and using information from the collected fluorescence signals to perform a general diagnosis. - View Dependent Claims (49, 50)
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51. A non-invasive method of determining the concentration of an analyte using fluorescence spectral information, the method comprising the acts of:
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pinching an area of skin tissue; placing a fluorescence-generating material near or around the pinched skin tissue, the fluorescence-generating material forming at least one opening therethrough; applying a high-intensity narrow band of light to the skin tissue through the at least one opening, the high-intensity light entering the pinched skin tissue and generating a fluorescence signal; reflecting the high-intensity light and fluorescence signal that pass through the pinched skin tissue back into the pinched skin tissue via the fluorescence-generating material; collecting the fluorescence signal generated from the high-intensity light entering the skin tissue and an additional fluorescence signal generated from the fluorescence-generating material; and determining the analyte concentration using information from the collected fluorescence signals. - View Dependent Claims (52)
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Specification