Laparoscopic sealed access device

• US 20020072762A1
• Filed: 03/13/2001
• Published: 06/13/2002
• Est. Priority Date: 12/01/1998
• Status: Active Grant

• Current Assignee: JNC Corporation (Chisso Corporation)
• Original Assignee: Atropos Limited
• Inventors: Bonadio, Frank, Reid, Alan, Young, Derek William, McManus, Ronan Bernard, Cushieri, Alfred
• Granted Patent: US 6,578,577 B2
• Time in Patent Office: Days
• US Class Current: 606/192
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• CPC Class Codes: A61B 17/3462 with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals expandable cannulas A61B17/3417
• CPC Class Codes: A61B 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/22051 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation A61B2017/22048, A61B2017/3486 take precedence
• CPC Class Codes: A61B 2017/3435 using everted sleeves
• CPC Class Codes: A61B 2017/3482 inside
• CPC Class Codes: A61M 2025/0062 having features to improve the sliding of one part within another by using lubricants or surfaces with low friction coatings A61M2025/0046
• CPC Class Codes: A61M 2025/109 having balloons for removing solid matters, e.g. by grasping or scraping plaque, thrombus or other matters that obstruct the flow
• CPC Class Codes: A61M 25/0119 Eversible catheters
• CPC Class Codes: A61M 29/02 Dilators made of swellable material balloon catheters for angioplasty A61M25/104

Abstract

A hand access device for use in hand assisted laparoscopic surgery comprises a substantially tubular inflatable sleeve of pliable gas tight material having a twisted inner sleeve section and an outer sleeve section. The device has an inner O-ring for insertion through a wound opening in the abdominal wall and an outer O-ring for location outside of the wound opening. On insertion of a surgeon'"'"'s arm the sleeve everts while monitoring a reduced lumen seal to the arm and a seal to the wound openings.

Claims

1. A medical device comprising:

—

a sleeve of defining a lumen;

the sleeve having a twisted sleeve section defining a reduced lumen section; and

tensioning means to facilitate axial extension of the twisted sleeve section.

2. A device as claimed in claim 1 wherein the sleeve is twisted to provide the twisted sleeve section.

3. A device as claimed in claim 1 or 2 wherein the sleeve is of pliable material.

4. A device as claimed in claim 1 wherein the means to facilitate axial extension of the twisted sleeve section comprises a chamber for a pressuring fluid.

5. A device as claimed in claim 4 wherein the chamber is defined by an outer sleeve section and an inner sleeve section.

6. A device as claimed in claim 5 wherein the outer sleeve section is a substantially cylindrical sleeve section and the inner sleeve section is a twisted sleeve section of the same untwisted diameter as that of the outer sleeve section.

7. A device as claimed in claim 5 or 6 wherein the sleeve is turned axially back on itself to define the outer sleeve section and the inner sleeve section.

8. A device as claimed in any preceding claim wherein the reduced lumen section is of a smaller size than that of an object to be received therein or passed therethrough.

9. A device as claimed in any of claims 5 to 8 wherein, on engagement of an object in the reduced lumen section and axial movement of the object relative thereto, the sleeve everts so that the twisted inner sleeve section is rolled over outwardly to become an untwisted outer sleeve section and the outer sleeve section is correspondingly rolled over inwardly to become a twisted inner sleeve section.

10. A device as claimed in any of claims 4 to 9 wherein the chamber is fluid impermeable.

11. A device as claimed in any of claims 4 to 10 wherein the chamber is inflatable.

12. A device as claimed in any of claims 4 to 11 wherein the chamber has an access port for inflation of the chamber.

13. A device as claimed in any of claims 5 to 12 including eversion limiting means to axially limit eversion of the sleeve.

14. A device as claimed in claim 13 including a first eversion limiting means for location externally of the opening and a second eversion limiting means for location internally of the opening.

15. A device as claimed in claim 13 or 14 wherein the or each eversion limiting mean is an O-ring.

16. A device as claimed in claim 15 wherein the O-ring is of a resilient material.

17. A device as claimed in any of claims 13 to 16 wherein the or each eversion limiting means is housed in the chamber.

18. A device as claimed in claim 17 wherein the or each eversion limiting means is movable axially in the chamber.

19. A device as claimed in claim 18 wherein there are two eversion limiting means and both are independently movable in the chamber.

20. A device as claimed in claim 18 wherein there are two eversion limiting means and a linkage means is provided between them.

21. A device as claimed in claim 20 wherein the linkage means is of pliable material.

22. A device as claimed in claim 20 or 21 wherein the linkage means comprises a linkage sleeve.

23. A device as claimed in any of claims 13 to 22 wherein the eversion limiting means comprises first and second eversion limiting means attached at different locations to the sleeve.

24. A device as claimed in claim 23 wherein the first eversion limiting means is attached to one end of the sleeve and the second eversion limiting means is attached at another end of the sleeve.

25. A device as claimed in claim 23 or 24 wherein the eversion limiting means are movable relative to one another for twisting the sleeve.

26. A device as claimed in claim 25 wherein the eversion limiting means are rotatable relative to one another for twisting the sleeve.

27. A device as claimed in claim 25 or 26 including handle means to facilitate movement of the eversion limiting means relative to one another.

28. A device as claimed in any of claims 25 to 26 including locking means for locking the first eversion limiting means relative to the second eversion limiting means.

29. A device as claimed in claim 1 wherein the tensioning means is a mechanical tensioning means.

30. A device as claimed in claim 29 wherein the tensioning means comprises a spring means.

31. A device as claimed in any preceding claim wherein the reduced lumen section is sized to sealing engage an object passing therethrough.

32. A device as claimed in any preceding claim for use in surgery.

33. A device as claimed in any preceding claim wherein the device is a forearm seal for use in carrying out hand assisted laproscopic surgery.

34. A device as claimed in any of claims 1 to 31 wherein the device is an endoluminal device.

35. A device as claimed in any of claims 1 to 31 wherein the device is an introducer for introducing an instrument into a body through an opening.

36. A device as claimed in any of claims 1 to 31 wherein the device is an exsanguinator.

37. A device as claimed in any of claims 1 to 31 wherein the device is an envaginator.

38. A device as claimed in any of claims 1 to 31 wherein the device is a tissue dissector.

39. A device as claimed in any of claims 1 to 31 wherein the device is a trocar seal.

40. A medical device substantially as hereinbefore described with reference to the accompanying drawings.