Intragastric implant devices
First Claim
1. An intragastric implant for use in a patient, the patient having an esophagus leading to a stomach, the stomach in communication with intestines through a pyloric valve, the intestines adjacent the pyloric valve including a duodenum with a duodenal bulb and bends, the intragastric implant comprising:
- an intragastric anchor adapted to extend from the fundus toward the pyloric valve in the patient when deployed within the patient'"'"'s gastrointestinal tract, the anchor comprising a rigid or semi-rigid elongate element having a width dimension and a length dimension, the width dimension being less than the length dimension, the elongate element being dimensioned sufficiently small to pass through the esophagus into the stomach and the length dimension being sufficiently long such that the length dimension inhibits passage of the anchor beyond the bends of the duodenum so that the anchor provides non-penetrating anchoring within the gastrointestinal tract; and
an intestinal bypass sleeve coupled to the anchor, the intestinal bypass sleeve having a central passage extending from a proximal opening to a distal outlet, the distal outlet configured to be positioned in the intestines while the intragastric anchor maintains the proximal opening adjacent the stomach so that food passes through the intestinal bypass sleeve.
1 Assignment
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Accused Products
Abstract
An intragastric implant comprises an anchor and a therapeutic device or a diagnostic device. The anchor is adapted to extend between the fundus and the pyloric valve of a stomach, to be retained without attachment to the stomach wall, and to anchor the device within the stomach with a relatively stable position and orientation. The therapeutic or diagnostic device is adapted to extend from the esophagus or stomach to the intestines or stomach. The therapeutic or diagnostic device, when extending into the esophagus, will be slidably received through the gastroesophageal junction and, when extending into the intestines, will be slidably received in the pyloric valve.
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Citations
45 Claims
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1. An intragastric implant for use in a patient, the patient having an esophagus leading to a stomach, the stomach in communication with intestines through a pyloric valve, the intestines adjacent the pyloric valve including a duodenum with a duodenal bulb and bends, the intragastric implant comprising:
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an intragastric anchor adapted to extend from the fundus toward the pyloric valve in the patient when deployed within the patient'"'"'s gastrointestinal tract, the anchor comprising a rigid or semi-rigid elongate element having a width dimension and a length dimension, the width dimension being less than the length dimension, the elongate element being dimensioned sufficiently small to pass through the esophagus into the stomach and the length dimension being sufficiently long such that the length dimension inhibits passage of the anchor beyond the bends of the duodenum so that the anchor provides non-penetrating anchoring within the gastrointestinal tract; and an intestinal bypass sleeve coupled to the anchor, the intestinal bypass sleeve having a central passage extending from a proximal opening to a distal outlet, the distal outlet configured to be positioned in the intestines while the intragastric anchor maintains the proximal opening adjacent the stomach so that food passes through the intestinal bypass sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An intragastric implant for use in a patient, the patient having an esophagus leading to a stomach, the stomach in communication with intestines through a pyloric valve, the intestines adjacent the pyloric valve including a duodenum with a duodenal bulb and bends, the intragastric implant comprising:
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an intragastric anchor comprising a rigid or semi-rigid elongate element having a width dimension less than a length dimension, wherein the elongate element is dimensioned sufficiently small to pass through the esophagus into the stomach and the length dimension is sufficiently long such that the length dimension inhibits passage of the anchor beyond the bends of the duodenum so as to provide non-penetrating anchoring within the gastrointestinal tract when deployed therein without attachment to a luminal wall of the gastrointestinal tract; and a compliant cylindrical member with a distal end configured to be positioned adjacent the stomach or intestines and a proximal end configured to be positioned adjacent the stomach or esophagus. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. A method for treating a metabolic disorder, said method comprising:
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providing an intragastric anchor coupled with an intestinal bypass sleeve, the anchor comprising an elongate element that is rigid or semi-rigid and the intestinal bypass sleeve extending from a proximal opening to a distal outlet, the proximal opening being supported by the anchor; inserting the intragastric anchor having the rigid or semi-rigid elongate element into a stomach of a patient through an esophagus leading to the stomach, the rigid or semi-rigid elongate element being sufficiently small to facilitate passage through the esophagus into the stomach; positioning the anchor in the stomach of the patient, the stomach being in communication with intestines through a pyloric valve, the intestines adjacent the pyloric valve including a duodenum with a duodenal bulb and bends, wherein the anchor is positioned so that the elongate element extends from the pyloric valve toward the fundus, the elongate element having a width dimension and a length dimension, the width dimension being less than the length dimension, wherein the width dimension is sufficiently small enough to pass through the esophagus into the stomach and the length dimension is sufficiently long such that the length dimension inhibits passage of the anchor beyond the bends of the duodenum so that the positioned anchor provides non-penetrating anchoring within the gastrointestinal tract without attachment to the gastrointestinal tract; and positioning a distal portion of the intestinal bypass sleeve within the duodenum so that at least a portion of the intestinal bypass sleeve extends distally from the pylorus through the duodenum.
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37. A method for treating a metabolic disorder, said method comprising:
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providing an intragastric anchor coupled with a hollow tube, the anchor comprising an elongate element that is rigid or semi-rigid and the hollow tube extending from a proximal opening to a distal outlet; introducing a catheter with an internal guidewire into the stomach via the esophagus and advancing a distal atraumatic tip of the catheter through the stomach and into the duodenum; advancing the intragastric anchor having the rigid or semi-rigid elongate element into the stomach through the esophagus within the catheter, the elongate element being rigid or semi-rigid and dimensioned sufficiently small to facilitate passage through the esophagus into the stomach; positioning the anchor in the gastrointestinal tract of a patient so that the elongate element extends from the pyloric valve toward the fundus, wherein the elongate element has a width dimension less than a length dimension, the length dimension being sufficiently long such that the length dimension inhibits passage of the anchor beyond the bends of the duodenum providing anchoring within the gastrointestinal tract without attachment to the stomach wall; and deploying the hollow tube through the duodenum so that a proximal opening of the hollow tube is supported by the intragastric anchor and the distal opening is disposed within the intestines. - View Dependent Claims (38, 39, 40, 41)
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42. An intragastric implant for use in a patient, the patient having an esophagus leading to a stomach in communication with intestines within a gastrointestinal tract, the intragastric implant comprising:
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an intragastric anchor providing anchoring within the gastrointestinal tract; an intestinal bypass sleeve coupled to the intragastric anchor, the sleeve having a central passage extending from a proximal opening to a distal outlet, the distal outlet configured to be positioned in the intestines while the intragastric anchor maintains the proximal opening adjacent the stomach so that food passes through the intestinal bypass sleeve; and a sliding seal supportably attached to a proximal portion of the intestinal bypass sleeve so that food passes into the intestinal bypass sleeve through the proximal opening, wherein the sliding seal is adapted to slidably engage an inner wall of the gastrointestinal tract with a reduced-friction interface that facilitates sliding along the inner wall of the gastrointestinal tract and inhibiting damage thereto. - View Dependent Claims (43, 44, 45)
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Specification