Resistive anti-obesity devices
First Claim
1. A gastrointestinal implant device comprising:
- an anchor adapted to be retained in the pyloric orifice or distal to the pylorus; and
a restrictive aperture attached to the anchor, adapted to retard the outflow of chyme from the stomach, the aperture expanding substantially at a pressure of 50 inches of water or more, the diameter of the aperture being about 5 mm or below, when the water pressure is between 0 and 50 inches of water.
1 Assignment
0 Petitions
Accused Products
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 or apertures that may be adjustable or elastic 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 sleeves or sleeves, but they need not. The resistor concept may be applied to a simple anchor and resistor without a long sleeve.
-
Citations
35 Claims
-
1. A gastrointestinal implant device comprising:
-
an anchor adapted to be retained in the pyloric orifice or distal to the pylorus; and a restrictive aperture attached to the anchor, adapted to retard the outflow of chyme from the stomach, the aperture expanding substantially at a pressure of 50 inches of water or more, the diameter of the aperture being about 5 mm or below, when the water pressure is between 0 and 50 inches of water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A gastrointestinal implant device comprising:
-
an anchor adapted to be retained in the pyloric orifice or distal to the pylorus; a flexible, floppy sleeve, a proximal end of the sleeve attached to the anchor, the sleeve to extend into the intestine, the sleeve defining a lumen through which chyme passes; and a restricting aperture within the sleeve, the aperture adapted to retard the outflow of chyme from the stomach, the aperture expanding substantially at a pressure of 50 inches of water or more, the diameter of the aperture being about 5 mm or below, when the water pressure is between 0 and 50 inches of water. - View Dependent Claims (10, 11, 12, 13, 14, 15)
-
-
16. A method for treating obesity comprising:
-
implanting a device within a gastrointestinal tract of an animal at or distal to the pylorus; and with the implanted device, resisting the outflow of chyme from the stomach with a restrictive aperture, the aperture expanding substantially at a pressure of 50 inches of water or more, the diameter of the aperture being about 5 mm or below, when the water pressure is between 0 and 50 inches of water. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
-
24. A method of treating obesity comprising:
-
anchoring a flexible, floppy sleeve with an anchor in the intestine, the sleeve extending into the intestine, the sleeve defining a lumen through which chyme passes; and restricting the outflow of chyme from the stomach with a restrictive aperture within the sleeve, the aperture expanding substantially at a pressure of 50 inches of water or more, the diameter of the aperture being about 5 mm or below, when the water pressure is between 0 and 50 inches of water. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. A gastrointestinal implant for treating obesity comprising:
-
aperture means for increasing within the intestine resistance to the outflow of chyme from the stomach, the aperture expanding substantially at a pressure of 50 inches of water or more, the diameter of the aperture being about 5 mm or below, when the water pressure is between 0 and 50 inches of water; and anchoring means for anchoring within a gastrointestinal tract of an animal and at the pyloric orifice or distal to the pylorus the aperture means. - View Dependent Claims (35)
-
Specification