DEVICE AND METHOD FOR OBTAINING AND PROCESSING MEASUREMENT READINGS OF A LIVING BEING

• US 20140139656A1
• Filed: 07/17/2012
• Published: 05/22/2014
• Est. Priority Date: 08/01/2011
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Jeanne, Vincent, Bodlaender, Maarten Peter, Verkruijsse, Willem
• Granted Patent: US 10,687,706 B2
• Time in Patent Office: Days
• US Class Current: 348/77
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/0015 characterised by features of the telemetry system
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/02405 Determining heart rate variability
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/14551 for measuring blood gases
• CPC Class Codes: A61B 5/4821 Determining level or depth of anaesthesia A61B5/1106 takes precedence

Abstract

The present invention relates to a device (10) for obtaining and processing measurement readings including at least a component representative of a physical phenomenon in a living being (16), comprising a sensor (12) for obtaining measurement readings from at least one body part of a living being (16) from a distance having at least a component representative of the physical phenomenon in the living being (16), an identification unit (26) for identifying the at least one body part of the living being (16); an extraction unit (38) for extracting at least one first signal from the measurement readings representing at least one component representative of the physical phenomenon, an evaluation unit (30) for obtaining adjustment information according to the at least one identified body part, and an adjustment unit (34) for adjusting the at least one first signal according to the adjustment information and for generating at least one output signal representing the physical phenomenon of the living being (16).

Claims

1. A device for obtaining and processing measurement readings including at least a component representative of a physical phenomenon in a living being, comprising:

a sensor for obtaining measurement readings from at least one body part of a living being from a distance having at least a component representative of the physical phenomenon in the living being;

an identification unit for identifying the at least one body part of the living being;

an extraction unit for extracting at least one first signal from the measurement readings representing at least one component representative of the physical phenomenon;

an evaluation unit for obtaining predetermined adjustment information according to the at least one identified body part; and

an adjustment unit for adjusting the at least one first signal according to the adjustment information and for generating at least one output signal representing the physical phenomenon of the living being.

2. The device according to claim 1, wherein the physical phenomenon is blood oxygenation, pulse, heart rate variability, blood pressure, respiratory rate, depth of anesthesia and/or hypo- and hypervolemia

3. The device according to claim 1, wherein the sensor is a video camera.

4. The device according to claim 1, wherein the adjustment information is at least one calibration curve.

5. The device according to claim 1, wherein the extracting unit is adapted for extracting the at least one first signal from the measurement readings according to the at least one identified body part.

6. The device according to claim 5, wherein the identification unit is adapted for estimating motions of the at least one identified body part and wherein the extraction unit is adapted for extracting the at least one first signal in accordance with the estimated motions.

7. The device according to claim 5, further comprising an analyzing unit for comparing at least two first signals representing component representatives of the physical phenomenon from different body parts of the living being.

8. The device according to claim 7, wherein the analyzing unit is adapted for determining a difference between the at least two first signals and for generating a reporting signal if the difference exceeds a threshold.

9. The device according to claim 5, wherein the adjustment unit is adapted for generating the output signal based on at least two first signals.

10. The device according to claim 9, wherein the adjustment unit is adapted for determining a quality of the at least two first signals and for selecting at least one first signal based on the quality.

11. The device according to claim 9, wherein the adjustment unit is adapted for merging the at least two first signals for generating the output signal.

12. A method for obtaining and processing measurement readings including at least a component representative of a physical phenomenon in a living being, comprising the steps of:

obtaining measurement readings from at least one body part of a living being from a distance having at least a component representative of the physical phenomenon in the living being;

identifying the at least one body part of the living being;

extracting at least one first signal from the measurement readings representing at least one component representative of the physical phenomenon;

obtaining predetermined adjustment information according to the at least one identified body part;

adjusting the at least one first signal according to the adjustment information; and

generating at least one output signal representing the physical phenomenon of the living being.

13. A processor for processing measurement readings including at least a component representative of a physical phenomenon in a living being, comprising:

an interface for receiving measurement readings from at least one body part of a living being obtained from a distance and having at least a component representative of the physical phenomenon in the living being;

an identification unit for identifying the at least one body part of the living being;

an extraction unit for extracting at least one first signal from the measurement readings representing at least one component representative of the physical phenomenon;

an evaluation unit for obtaining predetermined adjustment information according to the at least one identified body part; and

an adjustment unit for adjusting the at least one first signal according to the adjustment information and for generating at least one output signal representing the physical phenomenon of the living being.

14. A method for processing measurement readings including at least a component representative of a physical phenomenon in a living being, comprising the steps of:

receiving measurement readings from at least one body part of a living being obtained from a distance and having at least a component representative of the physical phenomenon in the living being;

identifying the at least one body part of the living being;

extracting at least one first signal from the measurement readings representing at least one component representative of the physical phenomenon;

obtaining predetermined adjustment information according to the at least one identified body part;

adjusting the at least one first signal according to the adjustment information; and

generating at least one output signal representing the physical phenomenon of the living being.

15. A computer program comprising program code means for causing a computer to carry out the steps of the method as claimed in claim 14 when said computer program is carried out on the computer.