Non-invasive body component concentration measuring apparatus and method of noninvasively measuring a concentration of a body component using the same
First Claim
1. A non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, the apparatus comprising:
- a light source unit for generating light of a predetermined wavelength;
a spectroscope for dividing the light into a predetermined wavelength band and for applying the light onto the measuring portion;
a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal;
a signal processing unit for processing the electrical signal; and
a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement, wherein the body-apparatus interface unit includes;
a fixing section for securing the periphery of the measuring portion;
an expanding section for stretching the measuring portion by expanding the fixing section;
a body-light reacting section for compressing the measuring portion into a predetermined thickness, the body-light reacting section having two optical windows for transmitting light; and
a thickness adjusting section for adjusting a distance between the two optical windows.
1 Assignment
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Accused Products
Abstract
In a non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, and a method of non-invasively measuring the concentration of the body component, the non-invasive body component measuring apparatus includes a light source unit for generating light of a predetermined wavelength and for applying the light onto the measuring portion, a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal, a signal processing unit for processing the electrical signal, and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement.
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Citations
19 Claims
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1. A non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, the apparatus comprising:
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a light source unit for generating light of a predetermined wavelength; a spectroscope for dividing the light into a predetermined wavelength band and for applying the light onto the measuring portion; a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal; a signal processing unit for processing the electrical signal; and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement, wherein the body-apparatus interface unit includes; a fixing section for securing the periphery of the measuring portion; an expanding section for stretching the measuring portion by expanding the fixing section; a body-light reacting section for compressing the measuring portion into a predetermined thickness, the body-light reacting section having two optical windows for transmitting light; and a thickness adjusting section for adjusting a distance between the two optical windows. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A body-apparatus interface unit of a non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, the body-apparatus interface unit comprising:
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a fixing section for securing a periphery of the measuring portion; an expanding section for stretching the measuring portion by expanding the fixing section; a body-light reacting unit for compressing the measuring portion into a predetermined thickness, the body-light reacting unit having two optical windows for transmitting light; and a thickness adjusting section for adjusting a thickness of the expanded measuring portion. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of non-invasively measuring a concentration of a body component in a measuring portion of a living body, the method comprising:
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adjusting a thickness of the measuring portion into a first thickness; removing tension around the measuring portion having the first thickness; measuring a first absorption spectrum from the measuring portion having the first thickness; adjusting the thickness of the measuring portion into a second thickness; measuring a second absorption spectrum from the measuring portion having the second thickness; establishing a multivariate statistical model about the body component using the first and second absorption spectra and an actually-measured concentration of the body component; and estimating the concentration of the body component using a difference absorption spectrum measured from the measuring portion using the statistical model. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification