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Medical devices and methods to prevent bile reflux after bariatric procedures

  • US 10,016,268 B2
  • Filed: 01/17/2017
  • Issued: 07/10/2018
  • Est. Priority Date: 06/26/2014
  • Status: Active Grant
First Claim
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1. A stent for implantation in portions of a patient'"'"'s esophagus, stomach, and duodenum after a bariatric surgery, the endoscopic stent comprising:

  • a stent portion, the stent portion including stent material forming 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 has a proximal flared end having a diameter 2 mm to 10 mm larger than a diameter of the remaining proximal end portion, wherein the proximal end portion, the enlarged middle portion and the distal end portion are sized such that when the proximal flared end is positioned within the esophagus, the proximal end portion has a length extending into the stomach, the enlarged middle portion resides within an antrum region of the stomach, and the distal end portion has a length extending into and residing within the duodenum, 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 at least a portion of the stent portion and extending distally beyond the distal end portion forming a polymeric sleeve portion, the polymeric sleeve portion devoid of the stent material.

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