BARCODE SCANNING DEVICE FOR DETERMINING A PHYSIOLOGICAL QUANTITY OF A PATIENT

• US 20130296716A1
• Filed: 12/22/2011
• Published: 11/07/2013
• Est. Priority Date: 01/06/2011
• Status: Active Grant

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Kurzenberger, Heinz Otto
• Granted Patent: US 10,366,255 B2
• Time in Patent Office: Days
• US Class Current: 600/479
• CPC Class Codes: A61B 5/0077 Devices for viewing the surface of the body, e.g. camera, magnifying lens
• CPC Class Codes: A61B 5/7495 using a reader or scanner device, e.g. barcode scanner
• CPC Class Codes: G06K 7/0004 Hybrid readers
• CPC Class Codes: G06K 7/10366 the interrogation device being adapted for miscellaneous applications

Abstract

In order to easily prepare a medical diagnostic analysis of a patient, a barcode scanning device (100) is configured for determining a physiological quantity of the patient. The barcode scanning device (100) comprises a light receiving unit (108) configured for receiving light (219) reflected from a surface to be sensed of the patient, and a signal processing unit (218) configured for determining the physiological quantity of the patient based on the received light (219).

Claims

1. A barcode scanning device configured both for reading a barcode attached to a patient and for determining a physiological quantity of the patient wherein the physiological quantity of the patient comprises at least one of a respiratory frequency of the patient or a pulse frequency of the patient, the barcode scanning device comprising:

a light emitting unit configured for emitting light towards a surface to be sensed of the patient, wherein a wavelength of the emitted light comprises visible light or infrared light, and wherein the emitted light comprises a light pattern of at least one of a rectangular shape, a rectangular framed shape, a grid-like shape, and a spot-like shape,

a light receiving unit configured for receiving light reflected from a surface to be sensed of the patient, and

a signal processing unit configured for determining the physiological quantity of the patient based on the received light, wherein the signal processing unit comprises a change signal determining unit configured for determining a signal indicative of a change between images acquired based on the received light.

4. The barcode scanning device according to claim 1, wherein the light emitting unit is configured as a laser light emitting unit configured for emitting laser light.

5. The barcode scanning device according to claim 1, wherein the light receiving unit comprises a camera configured for acquiring an image of the surface to be sensed.

6. The barcode scanning device according to claim 1, wherein the signal processing unit comprises an image compensating unit configured for compensating an image acquired based on the received light for distortions.

7. The barcode scanning device according to claim 6, wherein the image compensating unit is configured for determining a light pattern in the acquired image and for compensating the image based on the determined light pattern.

9. The barcode scanning device according to claim 1, wherein the signal processing unit comprises a peak determining unit configured for determining a peak of the signal indicative of the change between the images.

10. The barcode scanning device according to claim 9, wherein the peak determining unit is configured for comparing the signal indicative of the change between the images to a threshold value, wherein a determined peak comprises a signal portion being at least equal to the threshold value.

11. The barcode scanning device according to claim 9, wherein the signal processing unit comprises a time relating unit configured for relating a number of determined peaks to a receiving time of the light receiving unit associated with the determined peaks.

12. The barcode scanning device according to claim 1, wherein at least one of the image compensating unit and the change signal determining unit is configured for operating on an image acquired based on the received light in a point-wise way.

2. (canceled)

3. (canceled)

8. (canceled)

13. (canceled)

14. A method of determining a physiological quantity of a patient wherein the physiological quantity of the patient comprises at least one of a respiratory frequency of the patient or a pulse frequency of the patient, the method comprising:

emitting light towards a surface to be sensed of the patient, wherein the emitted light comprises a light pattern of at least one of a rectangular shape, a rectangular framed shape, a grid-like shape, and a spot-like shape,

receiving light reflected from a surface to be sensed of the patient by a light receiving unit of a barcode scanning device, and

determining the physiological quantity of the patient based on the received light by a signal processing unit of the barcode scanning device,

wherein the signal processing unit comprises a change signal determining unit configured for determining a signal indicative of a change between images acquired based on the received light.