SPECTRAL WINDOWS FOR SURGICAL TREATMENT THROUGH INTERVENING FLUIDS

• US 20080146898A1
• Filed: 12/19/2006
• Published: 06/19/2008
• Est. Priority Date: 12/19/2006
• Status: Abandoned Application

• Current Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Original Assignee: Ethicon Endo-Surgery, Inc. (Johnson & Johnson)
• Inventors: Weir, Michael P., Dunki-Jacobs, Robert J.
• Application Number:
  US11/612,686
• Publication Number:
  US 20080146898A1
• Time in Patent Office: Days
• US Class Current: 600/310
• CPC Class Codes: A61B 1/00172 with means for scanning
• CPC Class Codes: A61B 1/0638 providing two or more wavelengths
• CPC Class Codes: A61B 5/0062 Arrangements for scanning

Abstract

A scanning beam assembly for use in medical applications comprising a plurality of radiation emitters that emit radiation over different wavelength ranges, wherein at least one of the emitters emits radiation that is minimally absorbed by blood; a scanner including a reflector that receives radiation from the emitters and directs it onto a field-of-view; and at least one detector configured to receive the radiation scattered, reflected or transmitted by the field-of-view and generate an electrical signal.

Claims

1. A scanning beam assembly for use in medical applications, comprising:

a plurality of radiation emitters that emit radiation over different wavelength ranges, wherein at least one of the emitters emits radiation that is minimally absorbed by blood;

a scanner including a reflector that receives radiation from the emitters and directs it onto a field-of-view; and

at least one detector configured to receive the radiation scattered, reflected, or transmitted by the field-of-view and generate an electrical signal.

2. The assembly of claim 1 further comprising an image processor that generates a video image stream based on electrical signals generated by the detector.

3. The assembly of claim 2 further comprising a display device for displaying a video image of the field-of-view to a user.

4. The assembly of claim 1, wherein the radiation includes radiation in the range of about 650-2400 nm.

5. The assembly of claim 1, wherein the radiation includes radiation in the range of about 750-1700 nm.

6. The assembly of claim 1, wherein the blood is oxygenated human blood.

7. The assembly of claim 6, wherein the radiation includes radiation within the range of 650-1150 nm.

8. The assembly of claim 6, wherein the radiation includes radiation within the range of 650-750 nm.

9. The assembly of claim 6, wherein the radiation includes radiation within the range of 1050-1150 nm.

10. The assembly of claim 1, wherein the blood is deoxygenated human blood.

11. The assembly of claim 10, wherein the radiation includes radiation within the range of 700-1150 nm.

12. The assembly of claim 10, wherein the radiation includes radiation within the range of 700-750 nm.

13. The assembly of claim 10, wherein the radiation includes radiation within the range of 1050-1150 nm.

14. The assembly of claim 1, wherein the blood is porcine blood.

15. The assembly of claim 14, wherein the porcine blood is oxygenated.

16. The assembly of claim 1, wherein the radiation that is minimally absorbed by blood includes radiation in the range of about 1400-1800 nm.

17. The assembly of claim 1, wherein the radiation that is minimally absorbed by blood includes radiation in the range of about 2100-2400 nm.

18. A method for viewing body tissue in the presence of blood comprising the steps of:

a) providing a medical device including

(i) a plurality of radiation emitters that emit radiation over different wavelength ranges coupled into an optical fiber assembly having at least one signal inlet,

(ii) at least one of the emitters operating in a wavelength range that is minimally absorbed by blood,

(iii) a scanner including at least one reflector configured to direct the radiation from the emitters onto a field-of view,

(iv) at least one detector configured to receive and detect the radiation scattered, reflected, or transmitted by the surrounding field-of-view;

b) generating a video image stream based on electrical signals generated by the detector(s); and

c) displaying a video image of the field-of-view to a user.

19. The method of claim 18, wherein the radiation includes radiation in the range of about 650-2400 nm.

20. The method of claim 18, wherein the radiation includes radiation in the range of about 750-1700 nm.

21. The method of claim 18, wherein the blood is oxygenated human blood.

22. The method of claim 21, wherein the radiation includes radiation within the range of 650-1150 nm.

23. The method of claim 21, wherein the radiation includes radiation within the range of 650-750 nm.

24. The method of claim 21, wherein the radiation includes radiation within the range of 1050-1150 nm.

25. The method of claim 18, wherein the blood is deoxygenated human blood.

26. The method of claim 25, wherein the radiation includes radiation within the range of 700-1150 nm.

27. The method of claim 25, wherein the radiation includes radiation within the range of 700-750 nm.

28. The method of claim 25, wherein the radiation includes radiation within the range of 1050-1150 nm.

29. The method of claim 18, wherein the blood is porcine blood.