Anti-obesity devices

• US 8,882,698 B2
• Filed: 03/27/2012
• Issued: 11/11/2014
• Est. Priority Date: 12/02/2002
• Status: Expired due to Fees

• Current Assignee: GI Dynamics Incorporated
• Original Assignee: GI Dynamics Incorporated
• Inventors: Levine, Andy H., Melanson, David A., Meade, John C.
• Primary Examiner(s): Wiest, Philip R
• Assistant Examiner(s): Zimbouski, Ariana
• Application Number:
  US13/430,949
• Publication Number:
  US 20120184967A1
• Time in Patent Office: 959 Days
• Field of Search: 604/8, 604/104, 604/198, 604/194, 604/191, 606/108, 606/194, 606/198, 623/1.15, 623/1.17, 623/1.11, 623/23.65, 623/1.12, 623/1.2
• US Class Current: 604/8
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/0482 Needle or suture guides guides for drills, pins or wire A61B17/17; for puncturing needles A61B17/3403
• CPC Class Codes: A61B 17/1114 of the digestive tract, e.g. bowels or oesophagus
• CPC Class Codes: A61B 2017/00238 Type of minimally invasive operation A61B2017/00805 takes precedence
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/0419 H-fasteners
• CPC Class Codes: A61B 2017/061 hollow or tubular suture extending inside a hollow needle A61B2017/06052; hollow sutures A61B2017/06185
• CPC Class Codes: A61F 2/04 Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts A61F2/18, A61F2/20 take precedence; devices, other than stent-grafts, providing patency to, or preventing collapsing of, tubular structures of the body other than stent-grafts, e.g. stents A61F2/82; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/848 having means for fixation to the vessel wall, e.g. barbs
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2002/045 Stomach, intestines
• CPC Class Codes: A61F 2002/075 the stent being loosely attached to the graft material, e.g. by stitching
• CPC Class Codes: A61F 2002/8483 Barbs
• CPC Class Codes: A61F 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2002/9528 for retrieval of stents
• CPC Class Codes: A61F 2220/0016 with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2250/0039 : differing in diameter
• CPC Class Codes: A61F 5/0076 : preventing normal digestion, e.g. Bariatric or gastric sleeves
• CPC Class Codes: A61F 5/0089 : Instruments for placement or removal

Abstract

Method and apparatus for limiting absorption of food products in specific parts of the digestive system is presented. A gastrointestinal implant device is anchored in the pyloric portion of the gastrointestinal system and extends beyond the ligament of Treitz. All food exiting the stomach is funneled through the device. The gastrointestinal device includes an anchor for anchoring the device in the pyloric portion and a flexible sleeve that extents into the duodenum. The anchor is collapsible for endoscopic delivery and removal.

Claims

1. A delivery apparatus for delivering a gastrointestinal device, the apparatus comprising:

a gastrointestinal device comprising a tube;

a shaft extending through the tube, the shaft configured to pass through a length of the intestines and to deliver the gastrointestinal device;

an atraumatic element, distinct from the gastrointestinal device, distal to and releasably coupled to a distal tip of the shaft; and

a release mechanism that releasably engages the atraumatic element to retain the atraumatic element on the distal tip of the shaft, the release mechanism comprising a moveable element, the atraumatic element being released from the distal tip of the shaft and the moveable element by movement of the moveable element, the shaft including first and second holes near its distal tip, the moveable element exiting the shaft via the first hole and re-entering the shaft via the second hole.

2. The apparatus according to claim 1, wherein the shaft and gastrointestinal device are disposed within a guide tube, the guide tube configured to guide movement of the shaft and gastrointestinal device.

3. The apparatus according to claim 2, wherein the guide tube guides the passage of the shaft and gastrointestinal device through a length of the stomach.

4. The apparatus according to claim 1, wherein the atraumatic element is remotely releasable.

5. The apparatus according to claim 4, wherein the atraumatic element comprises a ball.

6. The apparatus according to claim 4, wherein the atraumatic element is inflatable.

7. The apparatus according to claim 1, wherein the atraumatic element is attached to a loop which is held by the release mechanism.

8. The apparatus according to claim 1, wherein the atraumatic element is larger in diameter than the shaft.

9. The apparatus according to claim 8, wherein the atraumatic element is 0.25 inches to 0.75 inches in diameter.

10. The apparatus according to claim 1, wherein the shaft is a catheter having a lumen therein.

11. The apparatus according to claim 1, wherein the shaft has a minimum bend radius of less than 0.5 inches without kinking.

12. The apparatus according to claim 1, wherein the moveable element extends along a first lumen in the shaft and a wire extends along a second lumen in the shaft.

13. The apparatus according to claim 1, wherein the moveable element extends between the first and second holes through a loop attached to the atraumatic element.

14. The apparatus according to claim 1, wherein the moveable element extends along a length of the inner shaft and is longitudinally moveable within the shaft.

15. The apparatus according to claim 1, wherein the moveable element is a wire.

16. The apparatus according to claim 1, wherein the atraumatic element is released by movement of the moveable element away from the atraumatic element.

17. A method of delivering a gastrointestinal device, the method comprising:

passing a shaft through a length of the intestines, the shaft having an atraumatic element, distinct from the gastrointestinal device, distal to and releasably coupled to a distal tip of the shaft and having a release mechanism that releasably engages the atraumatic element to retain the atraumatic element on the distal tip of the shaft;

releasing the atraumatic element from the shaft and the release mechanism, the release mechanism comprising a moveable element, the atraumatic element being released from the distal tip of the shaft and the moveable element by movement of the moveable element, the shaft including first and second holes near its distal tip, the moveable element exiting the shaft via the first hole and re-entering the shaft via the second hole; and

delivering the gastrointestinal device over the shaft, the gastrointestinal device comprising a tube extending over the shaft.

18. The method according to claim 17, wherein the shaft and gastrointestinal device are disposed within a guide tube, the guide tube configured to guide movement of the shaft and gastrointestinal device.

19. The method according to claim 18, wherein the guide tube guides the passage of the shaft and gastrointestinal device through a length of the stomach.

20. The method according to claim 17, wherein the shaft is disposed within a lumen of the gastrointestinal device.

21. The method according to claim 17, wherein the atraumatic element is remotely releasable.

22. The method according to claim 17, wherein the atraumatic element comprises a ball.

23. The method according to claim 17, wherein the atraumatic element is inflatable.

24. The method according to claim 17, wherein the atraumatic element is attached to a loop which is held by the release mechanism.

25. The method according to claim 17, wherein the atraumatic element is larger in diameter than the shaft.

26. The method according to claim 25, wherein the atraumatic element is 0.25 inches to 0.75 inches in diameter.

27. The method according to claim 17, wherein the shaft is a catheter having a lumen therein.

28. The method according to claim 17, wherein the shaft has a minimum bend radius of less than 0.5 inches without kinking.

29. The method according to claim 17, wherein the moveable element extends along a first lumen in the shaft and a wire extends along a second lumen in the shaft.

30. The method according to claim 17, wherein the moveable element extends between the first and second holes through a loop attached to the atraumatic element.

31. The method according to claim 17, wherein the moveable element extends along a length of the inner shaft and is longitudinally moveable within the shaft.

32. The method according to claim 17, wherein the atraumatic element is released by movement of the moveable element away from the atraumatic element.

33. The method according to claim 17, wherein the gastrointestinal device is delivered through an incision in the stomach.