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Delivery devices and methods for gastrointestinal implants

  • US 10,322,021 B2
  • Filed: 10/01/2015
  • Issued: 06/18/2019
  • Est. Priority Date: 04/03/2009
  • Status: Active Grant
First Claim
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1. A system for delivery and implantation of a gastrointestinal device within one or more of a pyloric antrum, a pylorus, a duodenal bulb, a duodenum, and a jejunum of a patient'"'"'s gastrointestinal tract, the system comprising:

  • an anchor having a collapsed configuration for delivery and an expanded configuration for anchoring within one or more of the pyloric antrum, the pylorus, and the duodenum, the anchor being expandable from the collapsed configuration to the expanded configuration;

    an intestinal bypass sleeve coupled to and extending from an end of the anchor;

    an anchor delivery catheter having an anchor capsule coupled to a proximal outer sheath, both the anchor capsule and the proximal outer sheath having a central longitudinal lumen, wherein a diameter of the central longitudinal lumen of the anchor capsule is sized and configured to retain the anchor in the collapsed configuration therein; and

    a pusher catheter slideably disposed within the central longitudinal lumen of the anchor delivery catheter such that the pusher catheter is configured to slide relative to the anchor capsule and the proximal outer sheath, the pusher catheter having a coupling feature disposed within the anchor capsule and the pusher catheter defining an internal lumen;

    wherein the coupling feature is adapted to engage the anchor such that the coupling feature is operable to deploy the anchor from the anchor capsule;

    an outer sheath delivery catheter slideably disposed partially within the internal lumen of the pusher catheter and having a distal portion extending distal to a distal end of the anchor delivery catheter, the outer sheath delivery catheter having an internal lumen; and

    an inner sheath delivery catheter slideably disposed within the internal lumen of the outer sheath delivery catheter, wherein the inner sheath delivery catheter has a sheath retention feature disposed at or near a distal end of the inner sheath delivery catheter.

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