Over-tube, method of manufacturing over-tube, method of disposing over-tube, and method of treatment in abdominal cavity

• US 20050049460A1
• Filed: 10/08/2004
• Published: 03/03/2005
• Est. Priority Date: 02/11/2003
• Status: Active Grant

• Current Assignee: Olympus Corporation
• Original Assignee: Olympus Corporation
• Inventors: Mikkaichi, Takayasu, Suzuki, Keita
• Granted Patent: US 7,645,230 B2
• Time in Patent Office: Days
• US Class Current: 600/121
• CPC Class Codes: A61B 1/00135 Oversleeves mounted on the endoscope prior to insertion
• CPC Class Codes: A61B 1/00142 with means for preventing contamination, e.g. by using a sanitary sheath
• CPC Class Codes: A61B 1/24 for the mouth, i.e. stomatoscopes, e.g. with tongue depressors tongue depressors per se A61B13/00; Instruments for opening or keeping open the mouth combined with saliva removers A61C17/00; mouth openers for animals A61D15/00
• CPC Class Codes: A61B 1/2736 Gastroscopes
• CPC Class Codes: A61B 1/31 for the rectum, e.g. proctoscopes, sigmoidoscopes , colonoscopes
• CPC Class Codes: A61B 1/313 for introducing through surgical openings, e.g. laparoscopes
• CPC Class Codes: A61B 90/40 Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment

Abstract

An over-tube for use in an endoscopic treatment in an abdominal cavity using an endoscope includes an over-tube main body which is inserted from a distal portion thereof via a natural opening in a patient'"'"'s body to access the inside of the abdominal cavity from the distal portion through a lumen wall, and an internal cover which is disposed in a passage of the endoscope disposed in an inner cavity of the over-tube main body and which is extractible from a proximal portion of the over-tube main body.

Claims

1. An over-tube which is used in combination with an endoscope having an elongated insertion section, comprising:

an over-tube main body having a distal portion on one end of an elongated tube and a proximal portion on the other end thereof and being capable of passing the insertion section of the endoscope, the over-tube main body being inserted from the distal portion thereof into a patient'"'"'s body through a natural opening to access an abdominal cavity through a lumen wall from the distal portion thereof; and

at least one internal cover which has a tubular shape and through which the insertion section of the endoscope is inserted in a detachably inserted state in an inner cavity of the over-tube main body, the internal cover having a distal portion which is disposed in a protruded state further on a front side from the distal portion of the over-tube main body and which covers an outer peripheral surface of the distal portion of the over-tube main body, and a proximal portion protruded on a hand side from the proximal portion of the over-tube main body, so that the internal cover is extractible from the proximal portion of the over-tube main body.

2. An over-tube according to claim 1, wherein the over-tube main body includes a detachable portion to which the distal portion of the internal cover is detachably attached on an outer peripheral surface.

3. An over-tube according to claim 2, wherein the internal cover includes an engagement member capable of engaging with the outer peripheral surface of the over-tube main body on the distal portion.

4. An over-tube according to claim 3, wherein the internal cover includes a flexible film-like member which is capable of covering at least the outer peripheral surface of the distal portion of the over-tube main body.

5. An over-tube according to claim 4, wherein the film-like member includes a detachment portion which is detachable in a peripheral direction of the film-like member on the distal portion.

6. An over-tube according to claim 2, wherein the internal cover includes a flexible film-like member which is capable of covering at least the outer peripheral surface of the distal portion of the over-tube main body.

7. An over-tube according to claim 6, wherein the film-like member includes a detachment portion which is detachable in a peripheral direction of the film-like member on the distal portion.

8. An over-tube according to claim 1, wherein the internal cover includes an engagement member capable of engaging with the outer peripheral surface of the over-tube main body on the distal portion.

9. An over-tube according to claim 8, wherein the internal cover includes a flexible film-like member which is capable of covering at least the outer peripheral surface of the distal portion of the over-tube main body.

10. An over-tube according to claim 9, wherein the film-like member includes a detachment portion which is detachable in a peripheral direction of the film-like member on the distal portion.

11. An over-tube according to claim 1, wherein the internal cover includes a flexible film-like member which is capable of covering at least the outer peripheral surface of the distal portion of the over-tube main body.

12. An over-tube according to claim 11, wherein the film-like member includes a detachment portion which is detachable in a peripheral direction of the film-like member on the distal portion.

13. An over-tube according to claim 1, wherein the over-tube main body includes an elongated over-tube sheath, and a hard over-tube hand portion disposed on a proximal portion of the over-tube sheath.

14. An over-tube according to claim 13, wherein the over-tube main body includes a channel through which a treatment device is insertable into the abdominal cavity from the proximal portion through the distal portion.

15. An over-tube according to claim 14, wherein the over-tube main body includes an isolating mechanism which isolates the over-tube main body and the abdominal cavity from the natural opening and the lumen in a liquid-tight and airtight manner.

16. An over-tube according to claim 15, wherein the over-tube main body includes a bending mechanism which is capable of bending the over-tube sheath in an intended direction.

17. An over-tube according to claim 14, wherein the over-tube hand portion includes a valve mechanism which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

18. An over-tube according to claim 17, wherein the valve mechanism includes a sealing member which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

19. An over-tube according to claim 13, wherein the over-tube hand portion includes a valve mechanism which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

20. An over-tube according to claim 19, wherein the valve mechanism includes a sealing member which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

21. An over-tube according to claim 13, wherein the over-tube main body includes a lumen which is capable of feeding air/water into the abdominal cavity from the proximal portion through the distal portion.

22. An over-tube according to claim 21, wherein the over-tube main body includes an isolating mechanism which isolates the over-tube main body and the abdominal cavity from the natural opening and the lumen in a liquid-tight and airtight manner.

23. An over-tube according to claim 22, wherein the over-tube main body includes a bending mechanism which is capable of bending the over-tube sheath in an intended direction.

24. An over-tube according to claim 21, wherein the over-tube hand portion includes a valve mechanism which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

25. An over-tube according to claim 24, wherein the valve mechanism includes a sealing member which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

26. An over-tube according to claim 13, wherein the over-tube main body includes a bending mechanism which is capable of bending the over-tube sheath in an intended direction.

27. An over-tube according to claim 1, wherein the over-tube main body includes a lumen which is capable of feeding air/water into the abdominal cavity from the proximal portion through the distal portion.

28. An over-tube according to claim 27, wherein the over-tube main body includes an isolating mechanism which isolates the over-tube main body and the abdominal cavity from the natural opening and the lumen in a liquid-tight and airtight manner.

29. An over-tube according to claim 28, wherein the over-tube main body includes a bending mechanism which is capable of bending the over-tube sheath in an intended direction.

30. An over-tube according to claim 27, wherein the over-tube hand portion includes a valve mechanism which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

31. An over-tube according to claim 30, wherein the valve mechanism includes a sealing member which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

32. An over-tube according to claim 1, wherein the over-tube main body includes an isolating mechanism which isolates the over-tube main body and the abdominal cavity from the natural opening and the lumen in a liquid-tight and airtight manner.

33. An over-tube according to claim 32, wherein the over-tube main body includes a bending mechanism which is capable of bending the over-tube sheath in an intended direction.

34. An over-tube according to claim 1, wherein the over-tube main body includes a channel through which a treatment device is insertable into the abdominal cavity from the proximal portion through the distal portion.

35. An over-tube according to claim 34, wherein the over-tube main body includes an isolating mechanism which isolates the over-tube main body and the abdominal cavity from the natural opening and the lumen in a liquid-tight and airtight manner.

36. An over-tube according to claim 35, wherein the over-tube main body includes a bending mechanism which is capable of bending the over-tube sheath in an intended direction.

37. An over-tube according to claim 34, wherein the over-tube hand portion includes a valve mechanism which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

38. An over-tube according to claim 37, wherein the valve mechanism includes a sealing member which isolates the over-tube main body from the natural opening and the lumen in a liquid-tight and airtight manner.

39. An over-tube according to claim 1, wherein the internal cover includes a sheet-like member which is roundable into a cylindrical shape.

40. A method of manufacturing an over-tube, comprising:

inserting a coil into a first tube;

further inserting a cored bar into the coil;

covering an outer part of the tube with a second tube whose melting point is higher than that of the first tube and which has a thermally shrinkable property;

heating the first and second tubes at a temperature at which the second tube is thermally shrunk to integrate the first and second tubes; and

extracting the cord bar from an integrated tube.

41. A method of manufacturing the over-tube according to claim 40, further comprising:

melting a distal portion of the integrated tube.

42. A method of disposing an over-tube, comprising:

inserting an over-tube having an internal cover disposed in an inner cavity thereof from a natural opening in a patient'"'"'s body;

engaging the distal portion of the over-tube with a lumen wall;

removing the internal cover from the inner cavity of the over-tube; and

inserting an insertion section of an endoscope into the inner cavity of the over-tube.

43. A method of treatment in an abdominal cavity using the method of disposing the over-tube according to claim 42, comprising:

introducing a treatment device further through an inner cavity of the over-tube;

guiding the endoscope and the treatment device into a position to be treated;

treating the position to be treated with the treatment device while observing the position with the endoscope;

extracting the endoscope and the treatment device from the inner cavity of the over-tube; and

extracting the over-tube.

44. A method of the treatment in the abdominal cavity according to claim 43, further comprising:

cleaning the inside of the abdominal cavity.

45. A method of the treatment in the abdominal cavity according to claim 44, further comprising:

sucking a cleaning solution by the cleaning in the abdominal cavity.