DEDICATED SPECTRAL ILLUMINATION SPECTROSCOPY
First Claim
Patent Images
1. Apparatus for determining an analyte level, the apparatus comprising:
- an illuminating arrangement (20, 25) for illuminating a part of the body (1) with an input spectrum, said input spectrum comprises two contributions, a first broadband contribution (20) comprising wavelengths over a broadband range, and a second selected contribution (25) comprising selected wavelengths correlated to the analyte absorption,a collector (30) for collecting transmitted and/or reflected light,a measuring arrangement (30) for measuring transmitted and/or reflected light intensity as a function of wavelength,a correlator (40) for obtaining the analyte level responsive to transmitted and/or reflected light intensity.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus and method for an analyte determination in blood, relying on spectroscopic techniques, in which sample is illuminated with light having dedicated spectral characteristics. The first light source (20) is a broadband light source in the IR-range, the second light source (25) is comprised of one or more monochromatic sources, such as laser diodes. The sources are chosen to correspond to wavelength highly correlated with glucose adsorption.
10 Citations
10 Claims
-
1. Apparatus for determining an analyte level, the apparatus comprising:
-
an illuminating arrangement (20, 25) for illuminating a part of the body (1) with an input spectrum, said input spectrum comprises two contributions, a first broadband contribution (20) comprising wavelengths over a broadband range, and a second selected contribution (25) comprising selected wavelengths correlated to the analyte absorption, a collector (30) for collecting transmitted and/or reflected light, a measuring arrangement (30) for measuring transmitted and/or reflected light intensity as a function of wavelength, a correlator (40) for obtaining the analyte level responsive to transmitted and/or reflected light intensity. - View Dependent Claims (2, 3, 4)
-
-
5. Method for non invasively determining an analyte level, comprising:
-
illuminating a part of a body with an input spectrum containing two contributions, a first broadband contribution containing wavelengths over a broadband range, and a second selected contribution containing pre-selected wavelengths, collecting transmitted and/or reflected light, measuring transmitted and/or reflected intensity as a function of wavelength, correlating the analyte level responsive to transmitted and/or reflected light intensity. - View Dependent Claims (6, 7, 8, 9, 10)
-
Specification