Resistive Anti-Obesity Devices
First Claim
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1. A gastrointestinal implant comprising:
- an anchor configured for implantation within a gastrointestinal tract of an animal at a position at or distal to the animal'"'"'s pylorus; and
an artificial stricture in communication with the anchor, the artificial stricture comprising a hole in a substantially impermeable blocking membrane, the hole being 5 mm or less in diameter, the membrane being attached to the anchor in a taught manner to limit axial extent of the membrane beyond the distal end of the anchor, the anchor removably securing the artificial stricture in position and the artificial stricture retarding the outflow of chyme from the stomach through the hole.
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Abstract
A patient is provided with an increased sense of satiety by increasing resistance to the outflow of food from the stomach and through the intestines. Stomach emptying may be slowed with devices implantable within the gastrointestinal tract below the stomach. Implants are preferably removable and can include artificial strictures that may be adjustable to vary the rate of stomach emptying. Slowing gastric emptying may induce satiety for a longer period and may therefore reduce food consumption. Many of the embodiments include intestinal liners or sleeves, but they need not. The resistor concept may be applied to a simple anchor and resistor without a long liner.
17 Citations
25 Claims
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1. A gastrointestinal implant comprising:
an anchor configured for implantation within a gastrointestinal tract of an animal at a position at or distal to the animal'"'"'s pylorus; and
an artificial stricture in communication with the anchor, the artificial stricture comprising a hole in a substantially impermeable blocking membrane, the hole being 5 mm or less in diameter, the membrane being attached to the anchor in a taught manner to limit axial extent of the membrane beyond the distal end of the anchor, the anchor removably securing the artificial stricture in position and the artificial stricture retarding the outflow of chyme from the stomach through the hole.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A gastrointestinal implant comprising:
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a self-expanding wave anchor configured for implantation within a gastrointestinal tract of an animal at or distal to the animal'"'"'s pylorus, the wave anchor having a relaxed diameter of at least 40 mm; and a resistive element in communication with the wave anchor, the anchor removably securing the resistive element in position and the resistive element retarding the outflow of chyme from the stomach. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification