METHOD AND MEASURING INSTRUMENT FOR COLLECTING SPECTROMETRIC TEST SIGNALS FROM LIVING TISSUE

• US 20100298715A1
• Filed: 09/26/2008
• Published: 11/25/2010
• Est. Priority Date: 09/26/2007
• Status: Abandoned Application

• Current Assignee: MBR Optical Systems GmbH & Co. KG
• Original Assignee: MBR Optical Systems GmbH & Co. KG
• Inventors: Schietzel, Michael, Jungmann, Holger
• Application Number:
  US12/680,047
• Publication Number:
  US 20100298715A1
• Time in Patent Office: Days
• US Class Current: 600/476
• CPC Class Codes: A61B 5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy A61B5/0071 takes precedence
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/441 Skin evaluation, e.g. for skin disorder diagnosis
• CPC Class Codes: G01N 21/49 within a body or fluid

Abstract

The invention relates to a method and a measuring instrument for collecting spectrometric test signals from living tissue. The aim of the invention is to create solutions which make it possible to generate, in the course of a spectrometric measurement, test results that supply more comprehensive data than previously known recording attempts. Said aim is achieved by a method for generating spectrometric test signals, in which light (L) is injected into a living tissue area (G) to be examined, reflected light (R) emerging from the tissue area to be examined is fed to a spectrometer device, and test signals representing the intensity of the reflected light by associating the same with the wavelength are generated by means of the spectrometer device. The measurement is taken such that the measurement process lasts a certain period of time (T) during which data is generated that represents the time course of the intensity of the resolved wavelengths, thus advantageously making it possible to generate, during the spectrometric measurement, signals which allow specific substances, e.g. the blood components cholesterol and sugar, to be associated with specific zones of the examined tissue area.

Claims

1. A method for generating spectrometric test signals in which:

light is coupled into a living tissue area to be examined,

reflected light, that emerges as such from the tissue area to be examined, is led to a spectrometer device, and

by the spectrometer device test signals are generated, that as such represent the intensity of the reflected light associated to the wavelength,

wherein the measurement is done in such a way that it extends over a lapse, and that for this lapse data are generated which describe the time course of the intensity of the resolved wavelengths.

2. The process according to claim 1, wherein within the lapse a plurality of spectra are recorded.

3. The process according to claim 1 wherein the data indicative for the time course of the intensity of the resolved wavelengths are stored with association to the wavelengths.

4. The process according to claim 3, wherein for recording the spectrum a data field is set up, that contains data on every dissolved wavelength value, which as such describe the intensity curve or the intensity dynamics.

5. The process according to claim 1, wherein the data for intensity dynamics are deposited as FFT parameters.

6. The process according to claim 1 wherein by means of dynamic characteristics an association of spectra with tissue, capillary, and/or fluid systems is done.

7. The process according to claim 6, wherein based on the dynamic characteristics it is ascertained if there is a substance in the bloodstream.

8. The process according to claim 1 wherein a calculation of substance concentrations is done using the dynamic characteristics.

9. The process according to claim 1 wherein a calculation of the concentrations of the substances in the respective tissue, capillary, and/or fluid system is done using the dynamic characteristics.

10. The process according to claim 1 wherein the dynamic characteristics are used as a basis of an evaluation method, in which by means of this evaluation method evaluation results are generated that as such describe the physiological state of a person.

11. A process for the generation of a signal indicative for the vasomotoric state of a person in which light is coupled into a tissue area, the light emerging from the tissue area is spectrally split, and by means of the time course of the intensity of certain wavelengths, an evaluation result typifying the vasomotoric state of the person is generated.

12. A mobile spectrometer with a storage device and an evaluation circuit, which spectrometer is configured in such a way that by it a measurement can be realized, in which:

light is coupled into a living tissue area to be examined,

reflected light that emerges as such from the tissue area to be examined, is led to a spectrometer device, and

by the spectrometer device test signals are generated, that represent as such the intensity of the reflected light associated to the wavelength,

wherein the measurement is done in such a way that it extends over a lapse, and that for this lapse data are generated which describe the time course of the intensity of the resolved wavelengths.