Cannula with integrated imaging and optical capability

• US 20050059862A1
• Filed: 09/12/2003
• Published: 03/17/2005
• Est. Priority Date: 09/12/2003
• Status: Abandoned Application

• Current Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: Phan, Huy D.
• Application Number:
  US10/661,454
• Publication Number:
  US 20050059862A1
• Time in Patent Office: Days
• US Class Current: 600/176
• CPC Class Codes: A61B 1/00165 with light-conductive means, e.g. fibre optics A61B1/07 takes precedence
• CPC Class Codes: A61B 1/313 for introducing through surgical openings, e.g. laparoscopes
• CPC Class Codes: A61B 18/1482 having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61B 2018/00065 porous
• CPC Class Codes: A61B 2018/0016 Energy applicators arranged in a two- or three dimensional array
• CPC Class Codes: A61B 2018/00238 porous
• CPC Class Codes: A61B 2018/00267 having a basket shaped structure
• CPC Class Codes: A61B 2018/1435 Spiral
• CPC Class Codes: A61B 2018/1467 using more than two electrodes on a single probe
• CPC Class Codes: A61B 2018/1472 for use with liquid electrolyte, e.g. virtual electrodes
• CPC Class Codes: A61B 2018/1475 Electrodes retractable in or deployable from a housing

Abstract

A cannula configured for providing an instrument access to an internal organ or tissue is provided. The cannula includes a shaft having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the lumen configured for slidably housing the instrument. The cannula also includes an imaging window mounted on the distal end of the shaft and/or an imaging cable coupled to the imaging window, the imaging cable fixedly secured to the shaft.

Claims

1. A cannula configured for providing an instrument access to the interior of a body, comprising:

a shaft having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the lumen configured for slidably housing the instrument;

an imaging window mounted on the distal end of the shaft; and

an imaging cable coupled to the imaging window, the imaging cable fixedly secured to the shaft.

2. The cannula of claim 1, further comprising:

one or more optical windows mounted on the distal end of the shaft; and

one or more optical cables coupled to the one or more optical windows, the one or more optical cables fixedly secured to the shaft.

3. The cannula of claim 2, wherein the one or more optical windows comprises a plurality of optical windows, and the one or more optical cables comprises a plurality of optical cables.

4. The cannula of claim 1, wherein the shaft has a wall, and the imaging cable is housed within the wall.

5. The cannula of claim 2, wherein the shaft has a wall, and the imaging cable and one or more optical cables are housed within the wall.

6. The cannula of claim 1, wherein the distal end of the shaft has a pre-shaped rectilinear geometry.

7. The cannula of claim 1, wherein the distal end of the shaft has a pre-shaped curvilinear geometry.

8. The cannula of claim 1, wherein the shaft has a cross-sectional dimension that is between 0.25 to 1.5 inches.

9. The cannula of claim 1, wherein the shaft is made from a malleable material.

10. The cannula of claim 1, wherein the distal end of the shaft is softer than the proximal end of the shaft.

11. The cannula of claim 1, further comprising a low-friction liner surrounding the lumen.

13. The cannula of claim 1, further comprising a stopper mounted to an exterior surface of the shaft.

14. The cannula of claim 13, wherein the stopper is fixedly secured to the exterior surface of the shaft.

15. The cannula of claim 13, wherein the stopper is slidably secured to the exterior surface of the shaft.

16. The cannula of claim 13, wherein the stopper has a ring shape and is coaxially surrounding the shaft.

12. The cannula of claim 111, wherein the liner is made from a material selected from the group consisting of Teflon, PEEK, Polyimide, Nylon, and Polyethylene.

17. A cannula assembly configured for providing an instrument access to the interior of a body, comprising:

a shaft having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the lumen configured for slidably housing the instrument;

an imaging window mounted on the distal end of the shaft;

an imaging cable coupled to the imaging window, the imaging cable fixedly secured to the shaft; and

an imaging device coupled to the imaging cable.

18. The cannula assembly of claim 17, further comprising:

one or more optical windows mounted on the distal end of the shaft; and

one or more optical cables coupled to the one or more optical windows, the one or more optical cables fixedly secured to the shaft.

19. The cannula assembly of claim 18, wherein the one or more optical windows comprises a plurality of optical windows, and the one or more optical cables comprises a plurality of optical cables.

20. The cannula assembly of claim 17, wherein the shaft has a wall, and the imaging cable is housed within the wall.

21. The cannula assembly of claim 18, wherein the shaft has a wall, and the imaging cable and one or more optical cables are housed within the wall.

22. The cannula assembly of claim 17, wherein the distal end of the shaft has a pre-shaped rectilinear geometry.

23. The cannula assembly of claim 17, wherein the distal end of the shaft has a pre-shaped curvilinear geometry.

24. The cannula assembly of claim 17, further comprising a stopper mounted to an exterior surface of the shaft.

25. The cannula assembly of claim 24, wherein the stopper is fixedly secured to the exterior surface of the shaft.

26. The cannula assembly of claim 24, wherein the stopper is slidably secured to the exterior surface of the shaft.

27. The cannula assembly of claim 24, wherein the stopper has a ring shape and is coaxially surrounding the shaft.

28. The cannula assembly of claim 17, wherein the imaging device comprises a charge coupled device (CCD) camera.

29. A cannula configured for providing an instrument access to the interior of a body, comprising:

a shaft having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the lumen configured for slidably housing the instrument;

one or more optical windows mounted on the distal end of the shaft; and

one or more optical cables coupled to the one or more optical windows, the one or more optical cables at least partially housed within a wall of the shaft.

30. The cannula of claim 29, further comprising:

an imaging window mounted on the distal end of the shaft; and

an imaging cable coupled to the imaging window, the imaging cable fixedly secured to the shaft.

31. The cannula of claim 29, wherein the one or more optical windows comprises a plurality of optical windows, and the one or more optical cables comprises a plurality of optical cables.

32. The cannula of claim 29, wherein the distal end of the shaft has a pre-shaped rectilinear geometry.

33. The cannula of claim 29, wherein the distal end of the shaft has a pre-shaped curvilinear geometry.

34. The cannula of claim 29, further comprising a stopper mounted to an exterior surface of the shaft.

35. The cannula of claim 34, wherein the stopper is fixedly secured to the exterior surface of the shaft.

36. The cannula of claim 34, wherein the stopper is slidably secured to the exterior surface of the shaft.

37. The cannula of claim 34, wherein the stopper has a ring shape and is coaxially surrounding the shaft.

38. A cannula assembly configured for providing an instrument access to the interior of a body, comprising:

a shaft having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, the lumen configured for slidably housing the instrument;

one or more optical windows mounted on the distal end of the shaft;

one or more optical cables coupled to the one or more optical windows, the one or more optical cables at least partially housed within a wall of the shaft; and

an optical device coupled to the one or more optical cables.

39. The cannula assembly of claim 38, further comprising:

an imaging window mounted on the distal end of the shaft; and

an imaging cable coupled to the imaging window, the imaging cable fixedly secured to the shaft.

40. The cannula assembly of claim 38, wherein the one or more optical windows comprises a plurality of optical windows, and the one or more optical cables comprises a plurality of optical cables.

41. The cannula assembly of claim 38, wherein the distal end of the shaft has a pre-shaped rectilinear geometry.

42. The cannula assembly of claim 38, wherein the distal end of the shaft has a pre-shaped curvilinear geometry.

43. The cannula assembly of claim 38, further comprising a stopper mounted to an exterior surface of the shaft.

44. The cannula assembly of claim 43, wherein the stopper is fixedly secured to the exterior surface of the shaft.

45. The cannula assembly of claim 43, wherein the stopper is slidably secured to the exterior surface of the shaft.

46. The cannula assembly of claim 43, wherein the stopper has a ring shape and is coaxially surrounding the shaft.

47. The cannula assembly of claim 38, wherein the optical device comprises a light source.