Photostimulation method and apparatus in combination with glucose determination
First Claim
1. A method for concentration determination of body analytes, comprising the steps of:
- using photo-stimulation at or near at least one sample site to enhance perfusion of said sample site, wherein sample constituents more accurately and/or precisely track corresponding blood or tissue constituent concentrations in more well perfused body regions; and
determining analyte concentration based upon measurements made at or near said photo-stimulated site.
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Accused Products
Abstract
A method and apparatus using photo-stimulation to treat or pretreat a sample site prior to analyte concentration determination is presented. More particularly, photo-stimulation at or near at least one sample site is used to enhance perfusion of the sample site leading to reduced errors associated with sampling. Increased perfusion of the sample site leads to increased volume percentages of the target analyte and/or allows the blood or tissue constituent concentrations to more accurately and/or precisely track corresponding sample constituents in more well perfused body compartments or sites such as arteries, veins, or fingertips. In one embodiment, analysis of the photo-stimulated site is used in conjunction with glucose analyzers to determine the analyte concentration with greater ease, accuracy, or precision and may allow determination of the analyte concentration of another non-sampled body part or compartment.
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Citations
47 Claims
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1. A method for concentration determination of body analytes, comprising the steps of:
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using photo-stimulation at or near at least one sample site to enhance perfusion of said sample site, wherein sample constituents more accurately and/or precisely track corresponding blood or tissue constituent concentrations in more well perfused body regions; and
determining analyte concentration based upon measurements made at or near said photo-stimulated site. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for photonic stimulation at or near a sample site pursuant to concentration determination of body analytes, comprising:
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a photonic source for enhancing perfusion at or near said sample site, wherein sample constituents more accurately and/or precisely track corresponding blood or tissue constituent concentrations in more well perfused body regions; and
means for determining analyte concentration based upon measurements made at or near said photo-stimulated site. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An apparatus for photo-stimulation in conjunction with glucose sampling and/or measurement techniques, comprising:
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a photonic source for photo-stimulation at or near a sample site to enhance perfusion of said sample site, wherein blood or tissue concentration of glucose more accurately tracks that of any of arterial, venous, fingertip, or well perfused body site glucose concentration; and
means for glucose determination by any of an invasive and a noninvasive technique. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. An apparatus for photo-stimulation in conjunction with analyte sampling and/or measurement techniques, comprising:
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a photonic source for photo-stimulation at or near a sample site to enhance perfusion of said sample site, wherein blood or tissue concentration of said analyte more accurately tracks that of any of arterial, venous, fingertip, or well perfused body site analyte concentration; and
means for analyte determination. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification