Apparatus for Measuring a Vital Function of a Living Creature

• US 20170035333A1
• Filed: 08/04/2015
• Published: 02/09/2017
• Est. Priority Date: 08/04/2015
• Status: Abandoned Application

• Current Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Original Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Inventors: WEBER, Rolf
• Application Number:
  US14/817,919
• Publication Number:
  US 20170035333A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2562/0238 Optical sensor arrangements for performing transmission measurements on body tissue
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/14552 Details of sensors specially adapted therefor

Abstract

Apparatus for measuring a vital function of a living creature comprising: a light source, wherein the light source emits a first light signal and a second light signal; a receiver, wherein the receiver receives a reflected first light signal, wherein the receiver receives a reflected second light signal; an evaluating unit, to evaluate the received first light signal with the received second light signal, wherein the evaluating unit measures the vital function based on the evaluated received first light signal.

Claims

1. Apparatus for measuring a vital function of a living creature comprising:

a light source, wherein the light source is configured to emit a first light signal and a second light signal;

a receiver, wherein the receiver is configured to receive a reflected first light signal, wherein the receiver is configured to receive a reflected second light signal; and

an evaluating unit, wherein the evaluating unit is configured to evaluate the received first light signal with the received second light signal, wherein the evaluating unit is configured to measure the vital function based on the evaluated received first light signal.

2. The apparatus of claim 1, wherein the light source comprises two light sources, wherein the first light source provides the first light signal, and wherein the second light source provides the second light signal.

3. The apparatus of claim 1, wherein the light source and/or the first light source and/or the second light source are light emitting diodes or laser diodes.

4. The apparatus of claim 1, wherein the first light signal comprises light with green color, and/or wherein the second light signal comprises light with blue color.

5. The apparatus of claim 1, wherein the first light signal is light with green color, and/or wherein the second light signal is light with blue color.

6. The apparatus according to claim 1, wherein the evaluating unit is configured to normalize an amplitude of the received first light signal by an amplitude of the received second light signal.

7. The apparatus of claim 1, wherein the evaluating unit is configured to determine as vital function a heart beat rate.

8. The apparatus of claim 1, wherein the evaluating unit determines as a vital function a blood oxygen concentration.

9. The apparatus of claim 2, wherein the first light source and the second light source are arranged side by side.

10. The apparatus of claim 1, wherein the first and the second light signal are configured so that the first light signal is reflected with a higher degree by blood than the second light signal.

11. The apparatus of claim 1, wherein a reflected light intensity of the first light signal and a reflected light intensity of the second light signal may change identical or similar with a change of the distance between the light source and the body of the living creature.

12. Method for measuring a vital function of a living creature comprising:

sending a first light signal and a second light signal to the living creature;

receiving a reflected first light signal and a reflected second light signal; and

evaluating the received first light signal with the received second light signal;

wherein the evaluated first light signal represents the vital function.