US 12,440,359 B2
Barrier devices, systems, and methods
John T. Favreau, Spencer, MA (US); Andrew Pic, Northboro, MA (US); Amanda L Smith, Boston, MA (US); Lauren Lydecker, Millbury, MA (US); and Travis Henchie, Worcester, MA (US)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by Boston Scientific Scimed Inc., Maple Grove, MN (US)
Filed on Nov. 4, 2020, as Appl. No. 17/089,133.
Claims priority of provisional application 62/930,899, filed on Nov. 5, 2019.
Prior Publication US 2021/0128334 A1, May 6, 2021
Int. Cl. A61F 5/00 (2006.01)
CPC A61F 5/0076 (2013.01) [A61F 5/0089 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A barrier device, comprising:
a distal self-expanding stent having an outer surface extending between a proximal end and a distal end, and a ring spaced proximally from the distal end and extending circumferentially around and radially outwardly from the outer surface of the stent;
a tubular barrier having a proximal end, a distal end, and a lumen extending therethrough, the distal stent disposed at the distal end of the tubular barrier; and
an anchoring self-expanding stent disposed at the proximal end of the tubular barrier and shaped to mimic the contour of the anatomy at which the anchoring self-expanding stent is to be anchored;
wherein the outer surface of the distal self-expanding stent is similarly shaped to a bolus of stomach materials and configured to get distally translated through the intestine, with the tubular barrier in tow, due to peristaltic waves generated by contraction of smooth muscles of the intestine against the outer surface of the distal self-expanding stent.