System for non-invasive measurement of glucose in humans
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United States of America Patent
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Jun 3, 2003
Grant Date -
Jan 30, 2003
app pub date -
Apr 11, 2001
filing date -
Apr 11, 2001
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Abstract
An apparatus and method for non-invasive measurement of glucose in human tissue by quantitative infrared spectroscopy to clinically relevant levels of precision and accuracy. The system includes six subsystems optimized to contend with the complexities of the tissue spectrum, high signal-to-noise ratio and photometric accuracy requirements, tissue sampling errors, calibration maintenance problems, and calibration transfer problems. The six subsystems include an illumination subsystem, a tissue sampling subsystem, a calibration maintenance subsystem, an FTIR spectrometer subsystem, a data acquisition subsystem, and a computing subsystem.
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