发明名称 |
METHOD AND APPARATUS FOR NON-INVASIVE DETECTION OF PHYSIOLOGICAL CHEMICALS, PARTICULARLY GLUCOSE |
摘要 |
Non-invasive measurements of physiological chemicals such as glucose are made using infrared radiation and a signal processing system that permits the construction of a device suited for home use. The level of a selected physiological chemical in a test subject is determined in a non-invasive and quantitative manner by a method comprising the steps of: (a) irradiating a portion of the test subject with near-infrared radiation such that the radiation is transmitted through or reflected from the test subject; (b) collecting data concerning the transmitted or reflected infrared radiation using a detector; (c) digitally filtering the collected data to isolate a portion of the data indicative of the physiological chemical; and (d) determining the amount of physiological chemical in the test subject by applying a defined mathematical model to the digitally filtered data. The data collected may be in the form of an absorbance spectrum, i.e., a representation of the variation in absorbance as a function of wavelength; or in the form of an interferogram, i.e., a representation of infrared light intensity as a function of the retardation of the moving mirror in the interferometer, and thus of time. |
申请公布号 |
EP0745216(A1) |
申请公布日期 |
1996.12.04 |
申请号 |
EP19950910197 |
申请日期 |
1995.02.07 |
申请人 |
UNIVERSITY OF IOWA RESEARCH FOUNDATION;OHIO UNIVERSITY |
发明人 |
SMALL, GARY, W.;ARNOLD, MARK |
分类号 |
A61B5/00;A61B5/145;A61B5/1455;G01J3/45;G01N21/35;(IPC1-7):G01N21/35 |
主分类号 |
A61B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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