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Medical devices and methods to prevent bile reflux after bariatric procedures

  • US 9,579,186 B2
  • Filed: 06/24/2015
  • Issued: 02/28/2017
  • Est. Priority Date: 06/26/2014
  • Status: Active Grant
First Claim
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1. An endoscopic stent for implantation in portions of a patient'"'"'s esophagus, stomach, and duodenum after sleeve gastrectomy or biliopancreatic diversion with duodenal switch or biliopancreatic diversion with duodenal switch, the endoscopic stent comprising:

  • a stent portion, the stent portion comprising a proximal end portion, a distal end portion, and an enlarged middle portion located between the proximal and distal end portions, wherein the proximal end portion is defined by a length of about 50 mm to about 200 mm, wherein the enlarged middle portion is defined by a length of about 20 mm to about 80 mm, and wherein the enlarged middle portion has an enlarged diameter relative to both the proximal end portion and the distal end portion; and

    a polymeric cover disposed over the stent portion and extending distally beyond the distal end portion forming a polymeric sleeve portion, the polymeric sleeve portion devoid of stent material;

    wherein the endoscopic stent is constructed and arranged for implantation such that the proximal end portion extends into a distal portion of the esophagus, the enlarged middle portion is disposed with a central portion of the stomach, the distal end portion terminates in the stomach, and only the polymeric sleeve portion extends into the duodenum.

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