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Modular gastrointestinal prostheses

  • US 9,962,278 B2
  • Filed: 06/11/2012
  • Issued: 05/08/2018
  • Est. Priority Date: 04/03/2009
  • Status: Active Grant
First Claim
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1. A modular system for treating metabolic disorders, the modular system comprising:

  • an anchoring element configured to be retained at a pyloric junction, the anchoring element including an expandable structure having a first reduced configuration configured for implantation of the anchoring element and a second expanded configuration configured for engaging a pylorus, the anchoring element including a first flange defining an outer diameter in the expanded configuration, a second flange defining an outer diameter in the expanded configuration, a neck portion having a first end attached to the first flange, a second end attached to the second flange, and a neck wall extending between the first end and second end and defining an outer diameter of the neck portion that is smaller than the outer diameter of the first flange and the second flange, the outer diameter of the first flange and the second flange larger than a maximum diameter of a pyloric orifice of a patient such that movement of the anchoring element toward the intestine is inhibited by contact of the first flange with the stomach side of the pylorus and movement of the anchoring element toward the stomach is inhibited by contact of the second flange with the intestinal side of the pylorus, and a docking feature,wherein the anchoring element does not penetrate into or exert a radial force upon a duodenal bulb; and

    a tubular implant adapted for placement within the gastro-intestinal tract, the tubular implant having a coupling feature for engaging and coupling with the docking feature of the anchoring element;

    wherein the docking feature and coupling feature are configured such that the tubular implant is releasably coupled to the anchoring element to facilitate removal of the tubular implant.

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