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Method and apparatus for non-invasive blood analyte measurement with fluid compartment equilibration

  • US 6,240,306 B1
  • Filed: 06/30/1999
  • Issued: 05/29/2001
  • Est. Priority Date: 08/09/1995
  • Status: Expired due to Fees
First Claim
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1. A method for non-invasive spectroscopic measurement of analytes, said method comprising the steps of:

  • providing a means for irradiating tissue with infrared energy;

    providing an output element, said output element operatively connected to a means for measuring a spectrum;

    providing a means for increasing the rate of equilibration of analyte concentration between tissue compartments, said tissue compartments including vascular and non-vascular compartments;

    activating said means for increasing the rate of equilibration of analyte concentration and allowing time for sufficient equilibration of analyte concentration between tissue compartments;

    irradiating tissue including said compartments with said infrared energy so that there is differential absorption of said infrared energy in said tissue; and

    collecting infrared energy exiting said tissue through said output element and quantifying said infrared energy with said means for measuring a spectrum.

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