Bariatric sleeve
First Claim
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1. A gastrointestinal implant device comprising:
- a floppy sleeve, open at both ends, and adapted to extend within the intestine, the sleeve being unsupported at a distal end, and being at least one foot in length, the sleeve being noncompliant and having a coefficient of friction less than about 0.2, the sleeve having a wall thickness of less than 0.001 inches and being conformable to collapse in the intestine to a small volume;
a collapsible sleeve anchor coupled to a proximal portion of the sleeve and adapted to anchor the sleeve-at or distal to the pylorus, in the intestine; and
barbs extending from the collapsible sleeve anchor, the barbs being at the proximal end of the anchor, the barbs being bi-directional and having two tines directed in opposite directions from each other and outwardly from the anchor, of which one tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a first direction and another tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a second direction substantially opposite to the first direction.
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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 stomach 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 to the stomach and a flexible sleeve. When implanted within the intestine, the sleeve can limit the absorption of nutrients, delay the mixing of chyme with digestive enzymes, altering hormonal triggers, providing negative feedback, and combinations thereof. The anchor is collapsible for endoscopic delivery and removal.
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Citations
16 Claims
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1. A gastrointestinal implant device comprising:
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a floppy sleeve, open at both ends, and adapted to extend within the intestine, the sleeve being unsupported at a distal end, and being at least one foot in length, the sleeve being noncompliant and having a coefficient of friction less than about 0.2, the sleeve having a wall thickness of less than 0.001 inches and being conformable to collapse in the intestine to a small volume; a collapsible sleeve anchor coupled to a proximal portion of the sleeve and adapted to anchor the sleeve-at or distal to the pylorus, in the intestine; and barbs extending from the collapsible sleeve anchor, the barbs being at the proximal end of the anchor, the barbs being bi-directional and having two tines directed in opposite directions from each other and outwardly from the anchor, of which one tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a first direction and another tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a second direction substantially opposite to the first direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A gastrointestinal implant device comprising:
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a flexible, floppy sleeve means open at both ends and adapted to extend within the intestine for altering normal digestion along at least that portion of the intestine containing the sleeve, the sleeve being unsupported at a distal end and the sleeve being at least one foot in length, the sleeve being noncompliant and having a coefficient of friction less than about 0.2, the sleeve having a wall thickness of less than 0.001 inches and being conformable to collapse in the intestine to a small volume; means coupled to a proximal portion of the sleeve for anchoring the sleeve within the digestive system, the means for anchoring being adapted to anchor the sleeve at or distal to the pylorus, in the digestive system; and barb means extending from the exterior surface of the anchoring means, the barb means being adapted to anchor the proximal portion of the sleeve to muscle, the barb means being bi-directional barbs, the bi-directional barbs comprising two tines directed in opposite directions from each other and outwardly from the anchor, of which one tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a first direction and another tine is so oriented at an oblique angle as to prevent longitudinal movement of the device in a second direction substantially opposite to the first direction. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification