EXPANDABLE PYLORIC ANCHORS AND METHODS FOR SECURING INTESTINAL BYPASS SLEEVES
First Claim
1. A gastrointestinal device for implanting within a pylorus, a duodenal bulb, and a duodenum of a patient'"'"'s gastrointestinal tract, the implant comprising:
- a first expandable anchoring ring formed from stranded wire, the first expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the first expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus;
a second expandable anchoring ring formed from stranded wire, the second expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the second expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; and
an intestinal bypass sleeve coupled to the first expandable anchoring ring and the second expandable anchoring ring, so as to allow a distance between the anchoring rings to exceed a width of the pylorus.
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Abstract
A gastrointestinal device for implanting within a patient'"'"'s gastrointestinal tract includes first and second expandable anchoring rings configured to be disposed on either side of a patient'"'"'s pylorus. The first expandable anchoring ring has a collapsed configuration and an expanded configuration, wherein in the expanded configuration the first expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus. The second expandable anchoring ring also has a collapsed configuration and an expanded configuration, wherein in the expanded configuration the second expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus. An intestinal bypass sleeve couples the first expandable anchoring ring and the second expandable anchoring ring, so as to allow a distance between the anchoring rings to exceed a width of the pylorus.
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Citations
20 Claims
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1. A gastrointestinal device for implanting within a pylorus, a duodenal bulb, and a duodenum of a patient'"'"'s gastrointestinal tract, the implant comprising:
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a first expandable anchoring ring formed from stranded wire, the first expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the first expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; a second expandable anchoring ring formed from stranded wire, the second expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the second expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; and an intestinal bypass sleeve coupled to the first expandable anchoring ring and the second expandable anchoring ring, so as to allow a distance between the anchoring rings to exceed a width of the pylorus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An anchoring device for implanting within a pylorus for treating gastroparesis, the device comprising:
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a first expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the first expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; a second expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the second expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; and the two anchoring rings are connected by a pyloric portion, the pyloric portion having a length greater than a width of the pylorus, such that the first expandable anchoring ring may be disposed on a first side of the pylorus and a second expandable anchoring ring may be disposed on a second side of the pylorus; wherein the pyloric portion is configured to resist closure of the pylorus. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A method for treating gastroparesis comprising:
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compressing a first expandable anchoring ring in a delivery tool, the first expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the first expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; compressing a second expandable anchoring ring in the delivery tool, the second expandable anchoring ring having a collapsed configuration and an expanded configuration, wherein in the expanded configuration the second expandable anchoring ring has a diameter larger than a maximum opening diameter of the pylorus; advancing the delivery tool to a pylorus of a patient; deploying the second expandable anchoring ring on a first side of the pylorus; deploying the first expandable anchoring ring on a second side of the pylorus; and coupling a valve coupled to a pyloric portion extending between the first and second expandable anchoring rings, the valve adapted to allow flow through the pyloric portion in a first direction and to resist flow through the pyloric portion in a second direction. - View Dependent Claims (20)
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Specification