Duodenal insert and method of use
First Claim
1. A duodenal insert for placing within an alimentary canal of an animal and controlling intermixing of digestive fluids with partially digested food materials exiting a stomach, the duodenal insert comprising:
- a flexible, elongated open-ended tube having a first end and a second end, the open-ended tube having a passageway extending from the first end to the second end for transporting the partially digested food materials within a smooth and unobstructed surface to enable the partially digested food materials to be squeezed through the tube by natural peristalsis action of the alimentary canal; and
a pylorus anchoring means at the first end engagable with a pyloric sphincter for anchoring the open-ended tube within a pylorus of the animal.
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Accused Products
Abstract
A duodenal insert (20) comprises an elongated open-ended tube (22) having a passageway that extends from a first end (24) to a second end (26) for transporting partially digested food materials from the stomach (6) for a predetermined distance below the stomach to interrupt or reduce the intermixing of digestive fluids with the partially digested food materials. The duodenal insert is anchored within a pylorus (10) by a pair of spaced apart first and second rings (32 and 34) in a seated and sandwiched arrangement with the pylorus. Bores (38) and splits (40) are optionally disposed through the open-ended tube to provide the digestive fluids controlled access to the interior of the duodenal insert.
477 Citations
11 Claims
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1. A duodenal insert for placing within an alimentary canal of an animal and controlling intermixing of digestive fluids with partially digested food materials exiting a stomach, the duodenal insert comprising:
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a flexible, elongated open-ended tube having a first end and a second end, the open-ended tube having a passageway extending from the first end to the second end for transporting the partially digested food materials within a smooth and unobstructed surface to enable the partially digested food materials to be squeezed through the tube by natural peristalsis action of the alimentary canal; and a pylorus anchoring means at the first end engagable with a pyloric sphincter for anchoring the open-ended tube within a pylorus of the animal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for effecting weight loss by a patient, comprising:
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providing, a duodenal insert having a flexible, elongated open-ended tube having a first end, a second end and a longitudinal axis between the first and second ends, the open-ended tube having a passageway extending from the first end to the second end for transporting partially digested food materials within a smooth and unobstructed surface to enable the partially digested food materials to be squeezed through the tube by natural peristalsis action of the alimentary canal, and a pylorus anchoring means at the first end engagable with a pyloric sphincter for anchoring the open-ended tube within a pylorus; collapsing the duodenal insert along a longitudinal axis of the insert; per-orally inserting the collapsed duodenal insert into the stomach through the esophageal-gastric juncture; inserting the pylorus anchoring means into the pylorus; releasing the collapsing force to cause the collapsed duodenal insert to autogenously reassume and retain its normal shape; manipulating the second end of the duodenal insert into the duodenum; and maintaining the duodenal insert within the pylorus and the duodenum for a length of time sufficient to cause a weight loss by the patient. - View Dependent Claims (11)
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Specification