Bariatric device and method
A bariatric device and method of causing at least partial satiety in a recipient includes positioning a body in a recipient, the body having a wall defining a lumen, the wall configured to generally conform to the shape and size of the proximal cardiac portion of the stomach. Force is exerted with the wall on the proximal cardiac portion of the stomach in the absence of food thereby activating receptors located in the proximal cardiac portion of the stomach, thereby influencing a neurohormonal feedback mechanism of the recipient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food.
1. A bariatric device, comprising:
a body having a wall defining a lumen for the passage of food and a fixation system that is adapted to fix said wall against the proximal cardiac portion of the stomach, said wall configured to generally the shape and size of the proximal cardiac portion of the stomach in the absence of food, said wall adapted to exert radial pressure on the proximal cardiac portion of the stomach thereby influencing a neurohormonal feedback mechanism of the recipient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food, wherein said lumen is substantially unrestricted and said wall is made from a self-extendable silicone-coated material.
2. The bariatric device according to claim 1 wherein said wall is flared to thereby conform to the cardiac notch of the proximal cardiac portion of the stomach.
3. The bariatric device as claimed in claim 1 wherein said body being generally frusto-conical in shape.
4. The bariatric device as claimed in claim 1 wherein said wall is adapted to exert a generally consistent radial pressure.
5. The bariatric device as claimed in claim 1 wherein said wall is at least partially absorbable.
6. The bariatric device as claimed in claim 1 wherein said fixation system includes at least one chosen from barbs, V-shaped appendages, metallic anchors extending radially from said body, staples and sutures.
7. The bariatric device as claimed in claim 1 wherein said fixation system includes a plurality of tissue-receiving through-openings in said wall.
8. The bariatric device as claimed in claim 1 wherein said wall is compressible for deployment through the esophagus.
9. The bariatric device as claimed in claim 1 wherein said wall is adapted to be removable.
10. A bariatric device, comprising:
a body having a wall defining a lumen, said wall configured to generally conform to the shape and size of the proximal cardiac portion of the stomach and configured to be positioned substantially entirely within the recipient's stomach, said wall adapted to exert pressure on the proximal cardiac portion of the stomach in the absence of food, thereby influencing a neurohormonal feedback mechanism of the recipient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food, wherein said lumen is substantially unrestricted; and
at least one fixation mechanism that is adapted to resist distal migration of said body.
11. The bariatric device as claimed in claim 10 wherein said body being generally frusto-conical in shape.
12. The bariatric device as claimed in claim 10 wherein said wall is adapted to exert a generally consistent radial pressure.
13. The bariatric device as claimed in claim 10 wherein said wall is at least partially absorbable.
14. The bariatric device as claimed in claim 10 wherein said fixation mechanism includes at least one chosen from barbs, V-shaped appendages, metallic anchors extending radially from said body, staples and sutures.
15. The bariatric device as claimed in claim 10 wherein said fixation mechanism includes a plurality of tissue-receiving through-openings in said wall.
16. The bariatric device as claimed in claim 10 wherein said wall is compressible for deployment through the esophagus.
17. The bariatric device as claimed in claim 10 wherein said wall is adapted to be removable.
18. A bariatric device consisting essentially of a body having a wall defining a lumen for the passage of food and a fixation system that is adapted to fix said wall against the proximal cardiac portion of the stomach, said wall configured to generally the shape and size of the proximal cardiac portion of the stomach, said wall adapted to exert radial pressure on the proximal cardiac portion of the stomach in the absence of food thereby influencing a neurohormonal feedback mechanism of the recipient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food.
19. The bariatric device as claimed in claim 18 wherein said body being generally frusto-conical in shape.
20. The bariatric device as claimed in claim 18 wherein said wall is adapted to exert a generally consistent radial pressure to the proximal cardiac portion of the stomach.
21. The bariatric device as claimed in claim 18 wherein said wall is compressible for deployment through the esophagus.
22. The bariatric device as claimed in claim 21 wherein said wall is made from a self-extendable silicone-coated material.
23. The bariatric device as claimed in claim 18 wherein said fixation system includes at least one chosen from barbs, V-shaped appendages, metallic anchors extending radially from said body, staples and sutures.
24. The bariatric device as claimed in claim 18 wherein said fixation system includes a plurality of tissue-receiving through-openings in said wall.
25. The bariatric device as claimed in claim 18 wherein said wall is adapted to be removable.
26. A method of causing at least partial satiety in a recipient, comprising:
positioning a body at a proximal cardiac portion of the stomach and fixing said body against the proximal cardiac portion of the stomach to resist migration of said body, said body having a wall defining a lumen, said body configured to the size and shape of the proximal cardiac portion of the stomach, said lumen substantially unrestricted; and
exerting pressure with said wall on a proximal cardiac portion of the stomach in the absence of food, thereby influencing a neurohormonal feedback mechanism of the patient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food.
27. The method as claimed in claim 26 including administering a medication to the recipient at least during initial deployment of said body.
28. The method as claimed in claim 26 including administering liquids to the recipient.
29. The method as claimed in claim 26 wherein said body being generally frusto-conical in shape.
30. The method as claimed in claim 26 including exerting a generally consistent radial pressure with said wall to the proximal cardiac portion of the stomach.
31. The method as claimed in claim 26 wherein said wall is at least partially absorbable.
32. The method as claimed in claim 26 wherein said fixation system includes at least one chosen from barbs, V-shaped appendages, metallic anchors extending radially from said body, staples and sutures.
33. The method as claimed in claim 26 wherein said fixation system includes tissue-receiving through-openings in said wall.
34. The method as claimed in claim 26 including compressing said wall and deploying said body through a recipient's esophagus.
35. The method as claimed in claim 26 including removing said body after the recipient has experienced sufficient weight loss.
36. A bariatric device, comprising:
a body having a wall defining a lumen for the passage of food;
wherein said wall is configured to generally the shape and size of the proximal cardiac portion of the stomach and adapted to exert radial pressure on the proximal cardiac portion of the stomach, thereby influencing a neurohormonal feedback mechanism of the patient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food; and
a fixation system that is adapted to fix said wall against the proximal cardiac portion of the stomach.
37. The bariatric device as claimed in claim 36 wherein said body being generally frusto- conical in shape.
38. The bariatric device as claimed in claim 36 wherein said wall is adapted to exert a generally consistent radial pressure.
39. The bariatric device as claimed in claim 36 wherein said wall is at least partially absorbable.
40. The bariatric device as claimed in claim 36 wherein said fixation system includes at least one chosen from barbs, V-shaped appendages, metallic anchors extending radially from said body, staples and sutures.
41. The bariatric device as claimed in claim 40 wherein said fixation system includes at least a portion of said body being adapted to facilitate tissue ingrowth.
42. The bariatric device as claimed in claim 36 wherein said fixation system includes at least a portion of said body being adapted to facilitate tissue ingrowth.
43. The bariatric device as claimed in claim 36 wherein said wall is made from a self- extendable silicone-coated material.
44. The bariatric device as claimed in claim 36 wherein said wall is compressible for deployment through the esophagus.
45. A method of causing at least partial satiety in a recipient, comprising:
positioning a body at a proximal cardiac portion of the stomach and fixing said body against the proximal cardiac portion of the stomach to resist migration of said body, said body having a wall defining a lumen, said body configured to the size and shape of the proximal cardiac portion of the stomach; and
exerting pressure with said wall on a proximal cardiac portion of the stomach in the absence of food, thereby influencing a neurohormonal feedback mechanism of the patient to cause at least partial satiety by augmenting fullness caused by food and simulating fullness in the absence of food.
46. The method as claimed in claim 45 wherein said body being generally frusto-conical in shape.
47. The method as claimed in claim 45 including exerting a generally consistent radial pressure with said wall to the proximal cardiac portion of the stomach.
48. The method as claimed in claim 45 wherein said wall is at least partially absorbable.
49. The method as claimed in claim 45 wherein said fixation system includes at least one chosen from barbs, V-shaped appendages, metallic anchors extending radially from said body, staples and sutures.
50. The method as claimed in claim 45 wherein said fixation system includes tissue- receiving through-openings in said wall.
51. The method as claimed in claim 45 including compressing said wall and deploying said body through a recipient's esophagus.
52. The method as claimed in claim 45 including removing said body after the recipient has experienced sufficient weight loss.
53. The method as claimed in claim 45 including administering a medication to the recipient at least during initial deployment of said body.
54. The method as claimed in claim 45 including administering liquids to the recipient.