Optical measurements apparatus and blood sugar level measuring apparatus using the same
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United States of America Patent
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Aug 7, 2007
Grant Date -
Mar 24, 2005
app pub date -
Jan 28, 2004
filing date -
Sep 24, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Blood sugar levels are measured non-invasively based on temperature measurement. Values of blood sugar levels non-invasively measured by a temperature measuring system are corrected using blood oxygen saturation and blood flow volume. Optical sensors are provided for detecting scattered light, reflected light, and light that enters into the skin which travels out of the body surface. The measurement data is stabilized by taking into consideration the influence of the thickness of skin on blood oxygen saturation.
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