Optical imaging systems and methods

• US 20080004533A1
• Filed: 06/30/2006
• Published: 01/03/2008
• Est. Priority Date: 06/30/2006
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Jansen, Floribertus P. M. Heukensfeldt, Lomnes, Stephen Johnson
• Application Number:
  US11/480,162
• Publication Number:
  US 20080004533A1
• Time in Patent Office: Days
• US Class Current: 600/476
• CPC Class Codes: A61B 2090/366 using projection of images directly onto the body
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/415 the glands, e.g. tonsils, adenoids or thymus
• CPC Class Codes: A61B 5/418 lymph vessels, ducts or nodes
• CPC Class Codes: A61B 6/508 for non-human patients
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras

Abstract

Optical imaging systems and methods are disclosed. The optical imaging system includes an electronic imaging device configured to capture an image of a site and a projector. An optical imaging system includes a projector configured to project a visible representation of the captured image onto the site during surgery. Another optical imaging system includes an optical element capable of aligning an optical axis of the electronic imaging device and the projector on a same optical axis. Also disclosed are methods for displaying an image on to a site. A method includes capturing a fluorescent image of a surgical site; and projecting a visible representation of the captured image onto the surgical site during surgery. Another method includes projecting a visible representation of a captured image of a site onto the site along a same optical axis along which the image is captured.

Claims

1. An optical imaging system comprising:

an electronic imaging device configured to capture an image of a surgical site; and

a projector configured to project a visible representation of the captured image onto the surgical site during surgery.

2. The optical imaging system of claim 1, wherein the surgical site is selected from a group consisting of tumor, lesion, digestive tract, lymph node, and nervous system.

3. The optical imaging system of claim 1, wherein the surgical site is inherently fluorescent, labeled with a fluorescent agent, or bioluminescent.

4. The optical imaging system of claim 3, further comprising an excitation light source that provides one or more wavelengths to excite the fluorescent agent or fluorescent site.

5. The optical imaging system of claim 4, further comprising a filter that selectively transmits a fluorescence wavelength.

6. The optical imaging system of claim 1, further comprising an optical element capable of aligning an optical axis of the electronic imaging device and the projector on a same optical axis.

7. The optical imaging system of claim 6, wherein the optical element comprises a beam splitter.

8. The optical imaging system of claim 1, wherein the electronic imaging device preferentially detects infrared light.

9. The optical imaging system of claim 1, wherein the electronic imaging device further comprises a filter, wherein the filter preferentially transmits infrared light.

10. The optical imaging system of claim 1, wherein the electronic imaging device comprises at least a member selected from a group consisting of charge coupled device, video camera, x-ray, video, gamma, MRI, and PET cameras.

11. The optical imaging system of claim 1, further comprising a geometric calibrator or mirror;

and

wherein the geometric calibrator or mirror are capable of aligning an optical axis of the electronic imaging device and the projector on a same optical axis.

12. The optical imaging system of claim 1, wherein the surgical site comprises a plurality of surgical sites that are inherently fluorescent, labeled with a fluorescent agent, or bioluminescent.

13. The optical imaging system of claim 12, wherein the electronic imaging device is configured to capture a plurality of images of the plurality of surgical sites that are different from each other;

and

wherein the projector is configured to project visible representations of the plurality of the captured images onto the surgical site.

14. The optical imaging system of claim 1, wherein the electronic imaging device is alternately sensitive to fluorescent and visible light.

15. The optical imaging system of claim 1, wherein the electronic imaging device comprises at least two electric imaging devices, wherein an electric imaging device is configured to visualize the surgical site and another electric imaging device is configured to visualize the projected image.

16. The optical imaging system of claim 1, wherein the electronic imaging device is configured to record information about the surgical field and wherein the information comprises one of absorption, scatter, fluorescence, multi-spectral optical signature, radioisotope emission, and data detectable by MRI, Xray and medical imaging platforms and wherein the recorded information is converted to an optical signal for use in projecting onto the surgical site.

17. A method for displaying an image onto a site, comprising:

(i) illuminating a surgical site that is fluorescent or labeled with a fluorescent agent with an excitation light source that provides one or more wavelengths to excite the fluorescent agent or fluorescent surgical site;

(ii) capturing a fluorescent image of the surgical site; and

(iii) projecting a visible representation of the captured fluorescent image onto the surgical site during surgery.

18. The method of claim 17, wherein capturing the fluorescent image of the surgical site comprises capturing the fluorescent image with an electronic imaging device;

and projecting a visible representation of the captured fluorescent image onto the surgical site with a projector.

19. The method of claim 18, further comprising aligning an optical axis of the electronic imaging device and the projector on a same optical axis with an optical element.

20. The method of claim 19, further comprising aligning the optical axis of the electronic imaging device and the projector on a same optical axis with a geometric calibrator or mirror.

21. The method of claim 17, wherein the electronic imaging device is alternately sensitive to fluorescent and visible light.

22. The method of claim 17, wherein the fluorescent image is captured by an electronic imaging device, and wherein the electronic imaging device comprises at least a member selected from a group consisting of charge coupled device, video camera, x-ray, video, gamma, MRI, and PET cameras.

23. The method of claim 17, further comprising enhancing the projected visible representation of the captured image.

24. The method of claim 23, wherein enhancing the projected visible representation of the captured image comprises contrasting color, contrasting intensity, or contrasting pattern.

25. The method of claim 17, wherein projecting a visible representation of the captured fluorescent image onto the surgical site during surgery comprises a time interval between when the image is captured and projected.

26. The method of claim 17, wherein the surgical site comprises a plurality of fluorescent regions.

27. The method of claim 17, further comprising illuminating a plurality of the surgical sites that are fluorescent or labeled with a fluorescent agent with an excitation light source that provides one or more wavelengths to excite the fluorescent agent or fluorescent surgical site.

28. The method of claim 17, further comprising capturing a plurality of fluorescent images of the of surgical sites.

29. The method of claim 17, further comprising projecting a plurality of visible representations of the captured fluorescent images onto the surgical site during surgery.

30. The method of claim 18, wherein the electronic imaging device comprises at least two electronic imaging devices, wherein an electronic imaging device is configured to visualize the surgical site and another electronic imaging device is configured to visualize the projected image.

31. The optical imaging system of claim 17, wherein the electronic imaging device is configured to record information about the surgical field and wherein the information comprises one of absorption, scatter, fluorescence, hyperspectral optical signature, radioisotope emission, and data detectable by MRI, Xray and medical imaging platforms and wherein the recorded information is converted to an optical signal for use in projecting onto the surgical site.

32. A method for displaying an image onto a site, comprising:

providing an electronic imaging device configured to capture an image of a surgical site;

providing a projector configured to project a visible representation of the captured image onto the surgical site; and

providing an optical element capable of aligning an optical axis of the electronic imaging device and the projector on a same optical axis.

33. The method of claim 32, further comprising projecting a visible representation of the captured image onto the surgical site during surgery.

34. An optical imaging system comprising:

an electronic imaging device configured to capture an image of a surgical site;

a projector configured to project a visible representation of the captured image onto the surgical site; and

an optical element capable of aligning an optical axis of the electronic imaging device and the projector on a same optical axis.

35. The optical imaging system of claim 34, wherein the surgical site is inherently fluorescent or labeled with a fluorescent agent.

36. The optical imaging system of claim 34, wherein the projector is configured to project a visible representation of the captured image onto the surgical site during surgery.

37. The optical imaging system of claim 34, wherein the electronic imaging device comprises at least a member selected from a group consisting of charge coupled device, video camera, x-ray, video, gamma, MRI, and PET cameras.

38. The optical imaging system of claim 34, wherein the electronic imaging device comprises at least two electronic imaging devices, wherein an electronic imaging device is configured to visualize the surgical site and another electronic imaging device is configured to visualize the projected image.