Transpyloric Anchoring
First Claim
1. A gastrointestinal implant device comprising:
- a collapsible stomach anchor having stomach prongs that extend outwards in a relaxed state, crowns of the stomach prongs defining a circle whose diameter is greater than about 50 millimeters;
a collapsible duodenal anchor having duodenal prongs that extend outwards in a relaxed state; and
a radially collapsible coupling member that couples the stomach anchor to the duodenal anchor, the coupling member maintaining the stomach anchor at a substantially constant position with respect to the duodenal anchor.
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Accused Products
Abstract
Gastrointestinal implants can be used to secure thin-walled sleeves, restrictor plates, and other devices within the gastrointestinal tract. An example implant includes three elements: a stomach anchor to resist distally oriented forces; a duodenal anchor to resist proximally oriented forces; and a connector element to keep the stomach anchor fixed relative to the stomach anchor. The implant is inserted into the gastrointestinal tract with a delivery device that holds the implant in a compressed state for minimally invasive delivery until the implant is positioned properly. Upon releasing from the delivery device, the implant expands to a relaxed state across the pylorus, allowing prongs that extending outward from the stomach and duodenal anchors to engage tissue in the gastrointestinal tract. The deployed implant may also include a thin-walled sleeve that extends into the intestine from the stomach anchor, duodenal anchor, or connector element.
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Citations
32 Claims
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1. A gastrointestinal implant device comprising:
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a collapsible stomach anchor having stomach prongs that extend outwards in a relaxed state, crowns of the stomach prongs defining a circle whose diameter is greater than about 50 millimeters; a collapsible duodenal anchor having duodenal prongs that extend outwards in a relaxed state; and a radially collapsible coupling member that couples the stomach anchor to the duodenal anchor, the coupling member maintaining the stomach anchor at a substantially constant position with respect to the duodenal anchor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method of treatment comprising:
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providing a gastrointestinal implant device, the device comprising; a collapsible stomach anchor having stomach prongs that extend outward in a relaxed state, crowns of the stomach prongs defining a circle with a diameter of about 50 millimeters or more; a collapsible duodenal anchor having duodenal prongs that extend outward in a relaxed state; and a radially collapsible coupling member that couples the stomach anchor to the duodenal anchor, the coupling member maintaining the stomach anchor at a substantially constant position with respect to the duodenal anchor; and securing the device across the pylorus of a patient. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32)
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Specification