Systems and methods for detection and illumination of regions of interest

• US 10,517,158 B2
• Filed: 02/08/2019
• Issued: 12/24/2019
• Est. Priority Date: 02/09/2018
• Status: Active Grant

• Current Assignee: Gentex Corporation, Mayo Foundation For Medical Education And Research (Mayo Clinic)
• Original Assignee: Gentex Corporation
• Inventors: Hallack, Jason D., Lintz, Joshua D., Falb, David M., Geerlings, Kurtis L., Tonar, William L., Hamlin, Bradley R., Schut, Jeremy A., VanVuuren, Mark A., Veenman, Steven J.
• Primary Examiner(s): Philogene, Haissa
• Application Number:
  US16/271,007
• Publication Number:
  US 20190254143A1
• Time in Patent Office: 319 Days
• CPC Class Codes: A61B 2017/00203 with speech control or speech recognition
• CPC Class Codes: A61B 2017/00207 with hand gesture control or hand gesture recognition
• CPC Class Codes: A61B 2090/304 using chemi-luminescent materials
• CPC Class Codes: A61B 2090/309 using white LEDs
• CPC Class Codes: A61B 2090/3612 with images taken automatically
• CPC Class Codes: A61B 2090/502 Headgear, e.g. helmet, spectacles
• CPC Class Codes: A61B 90/30 Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
• CPC Class Codes: A61B 90/35 Supports therefor
• CPC Class Codes: A61L 2/084 Visible light
• CPC Class Codes: A61L 2/10 Ultraviolet radiation
• CPC Class Codes: A61L 2202/11 Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
• CPC Class Codes: A61L 2202/14 Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
• CPC Class Codes: A61L 2202/25 Rooms in buildings, passenger compartments
• CPC Class Codes: F21V 21/28 adjustable in more than one plane
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21W 2131/205 for operating theatres
• CPC Class Codes: G06T 7/00 Image analysis
• CPC Class Codes: H04N 23/74 by influencing the scene brightness using illuminating means
• CPC Class Codes: H05B 47/10 Controlling the light source
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/125 : by using cameras
• CPC Class Codes: H05B 47/165 : following a pre-assigned programmed sequence; Logic control [LC]

Abstract

An illumination system for a lighting assembly comprises a light assembly configured to selectively illuminate an operating region in a surgical suite and a plurality of light sources positioned within the light assembly and configured to emit light. The system further comprises at least one imager configured to capture image data and a controller. The controller is configured to scan the image data for at least one region of interest comprising at least one of a shaded region and a contaminated region and identify a location of the region of interest in the operating region. The controller is further configured to control the light assembly to activate at least one of the light sources to emit light on the region of interest.

Claims

1. An illumination system, comprising:

a light assembly configured to selectively illuminate an operating region in a surgical suite;

a plurality of light sources positioned within the light assembly and configured to emit light;

at least one imager configured to capture image data; and

a controller configured to;

scan the image data for at least one region of interest comprising at least one of a shaded region and a contaminated region;

identify a location of the region of interest in the operating region; and

control the light assembly to activate at least one of the light sources to emit light impinging on the region of interest.

2. The illumination system according to claim 1, wherein the plurality of light sources comprises:

a first light source configured to emit a warm visible light; and

a second light source configured to emit cool visible light.

3. The illumination system according to claim 2, wherein the plurality of light sources further comprises:

a third light source configured to emit a detection emission comprising wavelengths ranging from approximately 25 nm to 600 nm.

4. The illumination system according to claim 1, wherein the light assembly is configured to emit a detection emission comprising ultraviolet light over the operating region.

5. The illumination system according to claim 4, wherein the controller is further configured to:

capture the image data in a field of view extending over at least a portion of the operating region.

6. The illumination system according to claim 5, wherein the controller is further configured to:

identify the contaminated region in response to identifying variations in an absorption of one or more bands of the detection emission in the image data.

7. The illumination system according to claim 6, wherein the controller is further configured to:

illuminate at least a portion of the contaminated region in a visible light emitted from the light assembly, wherein a portion of the operating region illuminated by the visible light indicates the contaminated region.

8. The illumination system according to claim 1, wherein the controller is further configured to:

control the detection emission to illuminate the operating region;

adjust the at least one imager to capture reflected light from the detection emission in the field of view; and

capture the image data representative of the operating region based on the adjustment of the field of view.

9. The illumination system according to claim 8, wherein the plurality of light sources are in connection with an articulating assembly comprising at least one actuator, where the controller is configured to control the at least one actuator to adjust a direction of the detection emission adjusting an orientation of at least one of the plurality of light sources.

10. The illumination system according to claim 8, wherein the controller is further configured to:

identify the location of the contaminated region in the operating region based on the image data.

11. The illumination system according to claim 8, wherein the controller is further configured to:

control the light assembly to emit a sterilization emission comprising germicidal light in the location of the contaminated region.

12. The illumination system according to claim 1, wherein the controller is further configured to:

identify the shaded region as the region of interest in response to identifying variations in luminosity of the location in the image data.

13. The illumination system according to claim 12, wherein the controller is further configured to:

in response to identifying the region of interest as the shaded region, control at least one of the plurality of light sources to illuminate the shaded region with a visible light emission.

14. The illumination system according to claim 13, wherein the plurality of light sources are in connection with an articulating assembly comprising at least one actuator, where the controller is configured to control the at least one actuator to adjust a direction of a visible light emission of the plurality of light sources to impinge upon the shaded region.

15. A method for illuminating a region of interest in an operating region, the method comprising:

capturing image data in a field of view representing the operating region;

scanning the image data for at least one region of interest comprising at least one of a shaded region and a contaminated region;

identifying a location of the region of interest in the operating region; and

controlling an articulating light assembly comprising at least one actuator to direct an emission from at least one of a plurality of light sources to emit light impinging on the region of interest.

16. The method according to claim 15, wherein detecting the region of interest as the contaminated region comprises:

emitting a detection emission into the operating region; and

identifying the contaminated region in response to identifying variations in an absorption of one or more bands of the detection emission in the image data.

17. The method according to claim 16, further comprising:

in response to identifying the region of interest as the contaminated region, activating the at least one of the plurality of light sources emitting a sterilization emission comprising germicidal light in the location of the contaminated region.

18. The method according to claim 15, wherein detecting the region of interest as the shaded region comprises identifying the shaded region as the region of interest in response to identifying variations in luminosity of the location in the image data.

19. The method according to claim 15, wherein the at least one actuator is configured to adjust the orientation of the plurality of light sources of the articulating light assembly.

20. An illumination system, comprising:

a light assembly configured to selectively illuminate an operating region in a surgical suite;

a plurality of light sources in connection with an articulating light assembly comprising a plurality of actuators configured to adjust an emission direction of the plurality of light sources to selectively impinge upon the operation region;

at least one imager configured to capture image data; and

a controller configured to;

scan the image data for at least one variation in a luminosity of the image data;

identify a location of a shaded region based on the at least one variation in luminosity in the image data;

control the plurality of actuators of the articulating light assembly directing the emission direction at the location of the shaded region;

activate a visible light emission of the plurality of light sources to illuminate the location of the shaded region; and

verify the illumination of the location of the shaded region based on the image data comprising the visible light emission.