Device for measuring concentration of constituent in blood and measuring method
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United States of America Patent
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Feb 18, 2014
Grant Date -
Oct 29, 2009
app pub date -
Apr 23, 2009
filing date -
Apr 25, 2008
priority date (Note) -
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Abstract
A device for measuring concentration of a constituent in blood includes: an irradiation unit for irradiating light toward a living body, the light having a wavelength disposed in a light absorption band of the constituent in the blood; a light receiving unit for receiving light, which is reflected in the living body or transmitted through the living body; and a concentration measurement unit for measuring the concentration of the constituent in the blood based on variation of light intensity of light received by the light receiving unit, the variation attributed to a pulse wave of the living body.
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