Surgery – Diagnostic testing – Measuring or detecting nonradioactive constituent of body...
Patent
1998-03-24
1999-09-28
Winakur, Eric F.
Surgery
Diagnostic testing
Measuring or detecting nonradioactive constituent of body...
600473, 356 39, A61B 500
Patent
active
059578416
ABSTRACT:
A glucose concentration in a living tissue as a target is determined by the following method. Near-infrared radiation is projected on the living tissue, and a resulting radiation emitted from the living tissue is received. A spectrum analysis of the resulting radiation is performed to detect a first absorption signal from a wavelength region, e.g., 1550 nm to 1650 nm, having an absorption peak of OH group derived from glucose molecule, a second absorption signal from a wavelength region, e.g., 1480 nm to 1550 nm, having an absorption peak of NH group in the living tissue, and a third absorption signal from a wavelength region, e.g., 1650 nm to 1880 nm, having an absorption peak of CH group in the living tissue. The glucose concentration is determined by a multivariate analysis of results of the spectrum analysis, in which the first, second and third absorption signals are used as explanatory variables, and the glucose concentration is a criterion variable. This method can predict the glucose concentration of the subject with an improved accuracy.
REFERENCES:
patent: 4655225 (1987-04-01), Dahne et al.
patent: 5070874 (1991-12-01), Barnes et al.
patent: 5086229 (1992-02-01), Rosenthal et al.
patent: 5222496 (1993-06-01), Clarke et al.
patent: 5333610 (1994-08-01), Hirao
patent: 5379764 (1995-01-01), Barnes et al.
patent: 5434412 (1995-07-01), Sodickson et al.
patent: 5551422 (1996-09-01), Simonsen et al.
Maruo Katsuhiko
Oka Masami
Matsushita Electric & Works Ltd.
Winakur Eric F.
LandOfFree
Method of determining a glucose concentration in a target by usi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of determining a glucose concentration in a target by usi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of determining a glucose concentration in a target by usi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-696519