Gastric bypass prosthesis
First Claim
1. A device for treatment of obesity of a patient comprising:
- an annular element having a relatively large outer boundary and a relatively small inner boundary;
an elongated flexible tube extending between a proximal end and a distal end, said tube defining a central lumen within said tube, said proximal end of said tube being connected to said relatively small inner boundary of said annular element, and forming a continuous passageway through a region interior to said relatively small inner boundary and said lumen,wherein said relatively large outer boundary of said annular element is adapted to be attached to an inner wall of a stomach of said patient, such that said annular element divides said stomach into two chambers, an esophagus-end chamber close to an esophagus of said patient, and a pylorus-end chamber close to a pylorus of said patient, and wherein said esophagus-end chamber is in fluid communication with said lumen of said tubewherein at least a portion of said flexible tube is thin-walled and made of a flexible material such that the thin-walled portion collapses when subjected to a positive pressure differential from the outside of the tube to the inside of the tube, and is openable when subjected to a positive pressure differential from the inside of the tube to the outside of the tube, said flexible portion of said tube being adapted to transport food through said central lumen in response to musculature movement of said patient.
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0 Petitions
Accused Products
Abstract
A device (10) for treatment of obesity of a patient comprises an annular element (12) having a relatively large outer boundary and a relatively small inner boundary, and an elongated flexible tube (14) extending from the relatively small inner boundary of the annular element to a distal end. The relatively large outer boundary is adapted to be attached to an inner wall of a stomach (100) of a patient, such that the annular element divides the stomach (100) into two chambers, an esophagus-end chamber close to an esophagus of the patient, and a pylorus-end chamber close to a pylorus of the patient. The invention also provides a method for treatment of obesity of a patient which includes inserting an annular element having a relatively large outer boundary and a relatively small inner boundary into a stomach of the patient, and attaching the relatively large outer boundary of the annular element to an inner circumference of the stomach of the patient.
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Citations
46 Claims
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1. A device for treatment of obesity of a patient comprising:
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an annular element having a relatively large outer boundary and a relatively small inner boundary; an elongated flexible tube extending between a proximal end and a distal end, said tube defining a central lumen within said tube, said proximal end of said tube being connected to said relatively small inner boundary of said annular element, and forming a continuous passageway through a region interior to said relatively small inner boundary and said lumen, wherein said relatively large outer boundary of said annular element is adapted to be attached to an inner wall of a stomach of said patient, such that said annular element divides said stomach into two chambers, an esophagus-end chamber close to an esophagus of said patient, and a pylorus-end chamber close to a pylorus of said patient, and wherein said esophagus-end chamber is in fluid communication with said lumen of said tube wherein at least a portion of said flexible tube is thin-walled and made of a flexible material such that the thin-walled portion collapses when subjected to a positive pressure differential from the outside of the tube to the inside of the tube, and is openable when subjected to a positive pressure differential from the inside of the tube to the outside of the tube, said flexible portion of said tube being adapted to transport food through said central lumen in response to musculature movement of said patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 43)
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40. A device for treatment of obesity of a patient comprising;
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an annular element having a relatively large outer boundary and a relatively small inner boundary;
an elongated flexible tube extending between a proximal end and a distal end, said tube defining a central lumen within said tube, said proximal end of said tube being connected to said relatively small boundary of said annular element, and forming a continuous passageway through a region interior to said relatively small boundary and said lumen,wherein said relatively large outer boundary of said annular element includes fibrous is adapted to be attached to an inner wall of a stomach of said patient, such that said annular element divides said stomach into two chambers, an esophagus-end chamber close to an esophagus of said patient, and a pylorus-end chamber close to a pylorus of said patient, and wherein said esophagus-end chamber is in fluid communication with said lumen of said tube, wherein said flexible tube includes two connected sections, wherein said first section has a length such that when said device is attached to the inner wall of the stomach, said first section extends from the relatively small inner boundary of said annular element to the pylorus of said patient, wherein said second section is made of a flexible material and is thin-walled such that said second section collapses to a substantially flat condition when the pressure outside the second section is greater than the pressure inside the second section and is openable when subjected to a positive pressure differential from the inside of the tube to the outside of the tube, said flexible portion of said tube being adapted to transport food through said central lumen in response to musculature movement of said patient. - View Dependent Claims (41, 42)
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44. A method for treatment of obesity of a patient comprising:
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providing an annular element having a relatively large outer boundary and a relatively small inner boundary, and an elongated flexible tube extending between a proximal end and a distal end, said tube being connected at said proximal end to said relatively small inner boundary of said annular element, said tube defining a central lumen within said tube, inserting an annular element and said tube into a stomach of the patient; and attaching said relatively large outer boundary of said annular element to an inner circumference of the stomach of said patient, such that said annular element divides said stomach into two chambers, an esophagus-end chamber close to an esophagus of said patient, and a pylorus-end chamber close to a pylorus of said patient, and whereby said esophagus-end chamber is in fluid communication with said lumen of said tube; wherein at least a portion of said flexible tube is thin-walled and made of a flexible material such that the thin-walled portion collapses when subjected to a positive pressure differential from the outside of the tube to the inside of the tube, and is openable when subjected to a positive pressure differential from the inside of the tube to the outside of the tube, said flexible portion of said tube being adapted to transport food through said central lumen in response to musculature movement of said patient. - View Dependent Claims (45, 46)
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Specification