US 12,245,959 B2
System, device and method for anchoring a stent
Daniel Tuck, Galway (IE); Martyn G. Folan, Galway (IE); Thomas M. Keating, Galway (IE); and Martin Burke, Galway (IE)
Assigned to BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed by BOSTON SCIENTIFIC SCIMED, INC., Maple Grove, MN (US)
Filed on Jun. 29, 2023, as Appl. No. 18/216,414.
Application 18/216,414 is a continuation of application No. 17/067,140, filed on Oct. 9, 2020, granted, now 11,730,614.
Claims priority of provisional application 62/915,051, filed on Oct. 15, 2019.
Prior Publication US 2023/0338174 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/04 (2013.01); A61F 2/07 (2013.01); A61F 2/848 (2013.01); A61F 2/90 (2013.01); A61F 5/00 (2006.01)
CPC A61F 2/848 (2013.01) [A61F 2/04 (2013.01); A61F 2/07 (2013.01); A61F 2/90 (2013.01); A61F 5/0079 (2013.01); A61F 2002/044 (2013.01); A61F 2220/0008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device comprising an elongate tubular body configured for positioning across an anatomical constriction portion that regulates flow between a first anatomical flow path and a second anatomical flow path, the device comprising:
a proximal stent having an elongate tubular wall having a proximal end, a distal end, a longitudinal extent therebetween the proximal end and the distal end configured to anchor the proximal stent with respect to anatomical structure proximal to the anatomical constriction portion, and a flare disposed at the distal end;
a distal stent having an elongate tubular wall having a proximal end and a distal end and a longitudinal extent therebetween configured to anchor the distal stent with respect to anatomical structure distal to the anatomical constriction portion; and
a sleeve more flexible than the proximal stent and the distal stent and coupled to the distal end of the proximal stent and the proximal end of the distal stent;
wherein:
the sleeve is configured to extend through and to conform to the anatomical constriction portion, and to transition in coordination with the anatomical constriction portion between an expanded configuration enabling flow through the sleeve and a constricted configuration wherein flow through the sleeve is restricted while the proximal stent remains anchored to anatomical structure proximal to the anatomical constriction portion and the distal stent remains anchored to anatomical structure distal to the anatomical constriction portion; and
the proximal stent, the distal stent, and the sleeve together define a central lumen providing a flow path through the elongate tubular body resistant to migration.