Non-invasive determination of direction and rate of change of an analyte
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United States of America Patent
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Mar 21, 2006
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N/A
app pub date -
Jan 8, 2004
filing date -
Aug 9, 1995
priority date (Note) -
Expired
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Abstract
The present invention relates generally to a non-invasive method and apparatus for measuring a fluid analyte, particularly relating to glucose or alcohol contained in blood or tissue, utilizing spectroscopic methods. More particularly, the method and apparatus incorporate means for detecting and quantifying changes in the concentration of specific analytes in tissue fluid. Also, the method and apparatus can be used to predict future levels of analyte concentration either in the tissue fluid or in blood in an adjacent vascular system.
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