Satiation devices and methods

摘要

A satiation device is described which includes a sheath or liner extending from the proximal or middle stomach to the distal antrum. Food ingested by the patient passes through the sheath or liner, thereby minimizing contact between the ingested food and the stomach. It is believed that over time, reduced contact between food and the stomach will result in decreased Ghrelin production by the patient and a consequent decrease in appetite. In some embodiments, the satiation device may also include a proximal pouch and/or a distal bypass tube.

主权项

1. A weight loss inducing device for implantation in a patient having an esophagus, a stomach, a gastro-esophageal junction region, a pylorus, and a small intestine, comprising:
a gastro-esophageal implant comprising a first sleeve extending from an upstream opening at an upstream end to a downstream opening at a downstream end, the first sleeve configured to be secured within the gastro-esophageal junction region of the patient's stomach such that the upstream opening is aligned with the esophagus; and a gastric bypass sleeve comprising an elongate tube extending from a proximal opening at a proximal end to a distal opening at a distal end, the proximal end of the gastric bypass sleeve being coupled to the first sleeve, the distal end of the gastric bypass sleeve dimensioned to extend through the pylorus and into the small intestine, when the first sleeve is secured to the gastro-esophageal junction region of the patient's stomach, wherein the gastric bypass sleeve is flexible enough to allow peristalsis within the small intestine, and wherein the gastric bypass sleeve is coupled to the first sleeve such that food that enters the first sleeve through the upstream opening leaves the gastric bypass sleeve through the distal opening.