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Title:
SYSTEM AND METHOD FOR MEASURING COMPONENT CONCENTRATION
Document Type and Number:
WIPO Patent Application WO/2007/145143
Kind Code:
A1
Abstract:
A system for measuring a concentration of a predetermined component contained in a sample includes: an oscillation unit for emitting a plurality of electromagnetic waves having different frequencies of the range from 5 GHz to 300 GHz toward a sample; a detection unit for detecting the plurality of electromagnetic waves reflected by the sample; and a calculation process unit for measuring at least one of a reflection coefficient and a complex dielectric constant and calculating a concentration of a predetermined component contained in the sample according to at least one of the reflection coefficient and the complex dielectric constant of the measured electromagnetic waves. Thus, it is possible to accurately measure a concentration of a predetermined component such as glucose contained in the sample of fluid such as blood.

Inventors:
WATANABE SHINSUKE (JP)
INOUE AKIRA (JP)
YOSHIDA HIROSHI (JP)
Application Number:
PCT/JP2007/061631
Publication Date:
December 21, 2007
Filing Date:
June 08, 2007
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
NIPRO CORP (JP)
WATANABE SHINSUKE (JP)
INOUE AKIRA (JP)
YOSHIDA HIROSHI (JP)
International Classes:
A61B5/145; G01N22/00
Foreign References:
JP2006000659A2006-01-05
JP2006090863A2006-04-06
Other References:
NIKAWA Y.: "Kettochi Sokutei no tame no Hikari Gijutsu Millimeter Wave o Mochiita Kettochi Sokuteiho", JAPANESE JOURNAL OF OPTICS, vol. 33, no. 7, 10 July 2004 (2004-07-10), pages 401 - 403, XP003018722
GUAN Y. ET AL.: "Resvent Trends on Microwave and Millimeter Wave Application Technology: Study of Simulation for High Sensitivity Non-invasive Measurement of Blood Sugar Level in Millimeter Waves", IEICE TRANSACTIONS ON ELECTRONICS, vol. E86-C, no. 12, 1 December 2003 (2003-12-01), pages 2488 - 2493, XP001185820
Attorney, Agent or Firm:
TANAKA, Mitsuo et al. (IMP Building3-7, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka 01, JP)
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