Method and device for examining or imaging an interior surface of a cavity

• US 9,044,185 B2
• Filed: 08/13/2012
• Issued: 06/02/2015
• Est. Priority Date: 04/10/2007
• Status: Active Grant

• Current Assignee: PSIP, LLC
• Original Assignee: Avantis Medical Systems, Inc.
• Inventors: Bayer, Lex
• Primary Examiner(s): SHAH, UTPAL D
• Application Number:
  US13/584,647
• Publication Number:
  US 20120300999A1
• Time in Patent Office: 1,023 Days
• Field of Search: 382/128, 382/284
• US Class Current: 1/1
• CPC Class Codes: A61B 1/0005 combining images e.g. side-by-side, superimposed or tiled
• CPC Class Codes: A61B 1/042 characterised by a proximal camera, e.g. a CCD camera
• CPC Class Codes: A61B 1/05 characterised by the image sensor, e.g. camera, being in the distal end portion
• CPC Class Codes: A61B 1/31 for the rectum, e.g. proctoscopes, sigmoidoscopes , colonoscopes
• CPC Class Codes: G06T 2207/10068 Endoscopic image
• CPC Class Codes: G06T 2207/20212 Image combination
• CPC Class Codes: G06T 2207/20221 Image fusion; Image merging
• CPC Class Codes: G06T 2207/30028 Colon; Small intestine
• CPC Class Codes: G06T 7/0012 Biomedical image inspection
• CPC Class Codes: G06T 7/0014 using an image reference approach
• CPC Class Codes: G06T 7/30 Determination of transform parameters for the alignment of images, i.e. image registration
• CPC Class Codes: G06T 7/70 Determining position or orientation of objects or cameras camera calibration G06T7/80
• CPC Class Codes: H04N 23/80 Camera processing pipelines; Components thereof
• CPC Class Codes: H04N 5/265 Mixing

Abstract

A method for examining an interior surface of a cavity includes the steps of capturing partial images of an interior surface of a cavity; joining the captured partial images to form a complete image of said interior surface of the cavity; and providing an warning if the joined partial images does not form a complete image of said interior surface of the cavity.

Claims

1. An accessory device for a colonoscope, the device comprising:

an imaging device configured to capture images of an interior surface of a colon, wherein the imaging device is configured to be positioned on a sidewall of a colonoscope;

a positioning sensor for detecting positional information of the imaging device within the colon; and

a processing device in communication with the imaging device and positioning sensor, wherein the processing device is programmed to join the images using the positional information, and wherein the processing device is further programmed to calculate an amount of time spent by the imaging device in an identified colon segment.

2. The device of claim 1, wherein the processing device comprises a memory capable of storing images and positional information.

3. The device of claim 2, wherein the memory is capable of storing the order in which images are captured.

4. The device of claim 1, wherein the positioning sensor is further configured to detect orientational information of the imaging device within the colon.

5. The device of claim 4, wherein the processing device is further programmed to join the images using the orientational information.

6. The device of claim 1, wherein the processing device is programmed to generate a complete image of the interior surface of the colon segment using the joined images.

7. The device of claim 6, wherein the processing device is programmed to detect and provide a warning if the joined images do not form a complete image of the interior surface of the colon segment.

8. The device of claim 1, wherein the positioning sensor comprises a magnetic positioning sensor.

9. The device of claim 1, wherein the positioning sensor comprises a RF positioning sensor.

10. The device of claim 1, wherein the positioning sensor comprises an optical positioning sensor.

11. The device of claim 2, wherein the processing device is further programmed to compare a newly captured image of the interior surface of the colon with the joined images.

12. The device of claim 2, wherein the processing device is further programmed to compare a newly captured image with an old image retrieved from the memory to identify changes in the interior surface of the colon.

13. The device of claim 2, wherein the processing device is further programmed to provide image and positional information to an operator so that the operator can return to a previously imaged location during a procedure.

14. The device of claim 1, wherein the processing device is programmed to recognize distinctive features of the colon segment.

15. A method of using an accessory device for a colonoscope, the method comprising:

capturing images of an interior surface of a colon using imaging device of an accessory device for a colonoscope, wherein the imaging device is positioned on a sidewall of the colonoscope and wherein the accessory device further comprises a positioning sensor for detecting positional information of the imaging device within the colon, and a processing device in communication with the imaging device and the positioning sensor; and

joining the captured images using the processing device, wherein the processing device is programmed to join the captured images using the positional information, and wherein the processing device is further programmed to calculate an amount of time spent by the imaging device in an identified colon segment.

16. The method of claim 15, wherein the processing device comprises a memory capable of storing images, positional information, and the order in which the images are captured.

17. The method of claim 15, further comprising clearing fluids from the colon prior to capturing images.

18. The method of claim 15, further comprising generating a complete image of the interior surface of the colon segment using the joined images.

19. The method of claim 18, further comprising detecting if the joined images do not form a complete image of the interior surface of the colon segment and generating a warning.

20. The method of claim 15, wherein the positioning sensor is configured to detect orientational information of the imaging device within the colon.