STOMACH BYPASS FOR THE TREATMENT OF OBESITY

• US 20110087146A1
• Filed: 10/08/2010
• Published: 04/14/2011
• Est. Priority Date: 10/09/2009
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Ryan, Shawn, Weitzner, Barry
• Granted Patent: US 10,052,220 B2
• Time in Patent Office: Days
• US Class Current: 604/8
• 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 2002/044 Oesophagi or esophagi or gullets
• CPC Class Codes: A61F 2002/045 Stomach, intestines
• CPC Class Codes: A61F 5/0076 preventing normal digestion, e.g. Bariatric or gastric sleeves

Abstract

The present application provides devices and methods for inducing weight loss. In particular, the present application provides devices which are secured in the stomach or external to the stomach to reduce digestion and/or absorption of food in accordance with the methods of the invention

Claims

1. A device for diverting passage of food through an alimentary canal comprising:

a tubular structure comprising an outer surface and an inner surface, a proximal end and a distal end, and a central portion,

wherein said proximal end of said structure is sized to fit within an esophagus, and

wherein said distal end is sized to fit within an intestine.

2. The device of claim 1, wherein at least a portion of said structure is impermeable or semi-permeable to stomach fluids.

3. The device of claim 1, further comprising at least one retainer structure.

4. The device of claim 3, wherein said retainer structure secures said proximal end of said structure within said esophagus.

5. The device of claim 3, wherein said retainer structure secures said distal end of said structure within said small intestine.

6. The device of claim 1, further comprising at least one structure which is capable of expanding within said stomach.

7. The device of claim 6, wherein said at least one structure which is capable of expanding within said stomach is positioned about said structure comprising an outer surface and an inner surface, a proximal end and a distal end, and a central portion.

8. The device of claim 7, wherein said structure which is capable of expanding within the stomach is a mechanical expanding device.

9. The device of claim 7, wherein said structure which is capable of expanding within the stomach is an inflatable structure.

10. The device of claim 9, wherein said structure which is capable of expanding within the stomach is a balloon.

11. The device of claim 1, wherein said tubular structure comprises at least one distensible portion.

12. The device of claim 11, wherein said distensible portion is a pouch.

13. The device of claim 1, wherein said structure is a tubular structure.

14. The device claim 13, wherein said tubular structure is a stent.

15. The device of claim 1, wherein said tubular structure is a distensible structure.

16. The device of claim 1, wherein said tubular structure is a bag-like structure.

17. The device of claim 1, wherein said device further comprises at least one adjustable structure which is positioned about said tubular structure.

18. The device of claim 1, wherein at least a portion of said tubular structure comprises a coating which is impermeable or semi-permeable to gastric fluids.

19. The device of claim 1, further comprising a loose fabric structure attached to the outer surface of the tubular structure.

22. A method for inducing weight loss in an individual comprising positioning the device of claim 19 within the gastrointestinal system of a patient.

20. A method for diverting food within an alimentary canal in a patient comprising:

(i) inserting a tubular structure having an outer surface and an inner surface, a proximal end and a distal end, and a central portion within a stomach;

(ii) positioning said tubular structure within said stomach such that said proximal end of said tubular structure is positioned within an esophagus which leads to said stomach;

(iii) passing said central portion and said distal portion through a wall of said stomach such that said central portion of said tubular structure transverses said stomach from said esophagus to a small intestine external to said stomach; and

(iv) re-inserting the distal portion of said tubular structure through a wall of a small intestine such that said distal portion of said tubular structure is positioned within a small intestine which receives digestive fluids flowing from said stomach.

21. A device for inducing weight loss in a patient comprising:

(i) at least one inner structure comprising a membrane which is impermeable or semi-permeable to gastric secretions; and

(ii) at least one outer structure which is permeable to gastric secretions.

23. A device for inducing weight loss in a patient comprising:

(i) at least one first panel comprising a proximal end and a distal end;

(ii) at least one second panel comprising a proximal end and a distal end; and

(iii) a channel therebetween;

wherein said proximal end of said first panel is aligned with said proximal end of said second panel to form a portion suitable for insertion in an esophagus; and

wherein said distal end of said first panel is aligned with said second end of said second panel to form a portion suitable for insertion in a small intestine.

24. The device of claim 23, wherein at least one of said first panel and said second panel is impermeable or semi-permeable to stomach fluids.

25. A method for inducing weight loss comprising the step of inserting the device of claim 23 into the gastrointestinal system of a patient.

26. A method for inducing weight loss in a patient comprising the steps of:

(i) placing at least one restrictive device in the esophagus of said patient;

(ii) placing a device having an outer surface and an inner surface, a proximal end and a distal end, and a central portion into the gastrointestinal system of the patient, and

(iii) positioning said device within said gastrointestinal system such that said proximal end of said device is positioned within the esophagus, such that said distal end of said device is positioned within the small intestine, and such that the central portion of said device transverses the stomach externally.