Method of sample control and calibration adjustment for use with a noninvasive analyzer
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United States of America Patent
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Jun 3, 2008
Grant Date -
Jan 20, 2005
app pub date -
May 18, 2004
filing date -
Aug 14, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and apparatus for easing the use of an optically based noninvasive analyzer is presented. More particularly, a simplified algorithm is used that removes the daily requirement of collecting and using a noninvasive spectrum to update a calibration model. In another embodiment, a guide is used to substantially reduce variation in sample probe placement in relation to a skin tissue sampling site, resulting in the ability to maintain calibration performance with the use of a reference analyte concentration, with or without the use of a reference spectrum collected nearby in time.
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