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US 2018/0280166 A1Published application
Stents with dual tissue-wall anchoring features
AssigneeBoston Scientific Scimed, Inc.
InventorsMichael Walsh, Martyn G. Folan, Shane Moylan, Thomas M. Keating, Martin Hynes, Thomas Holly
Life of this patent
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Abstract
The present disclosure relates generally to the field of stents for body lumen drainage. In particular, the present disclosure relates to systems and methods for forming a fluid channel between tissue walls of varying thickness using a stent.
Claims20
A stent, comprising:
- a stent body formed of a woven filament having a constrained configuration,
- the stent body having an expanded configuration with a proximal portion of the body expanded into a proximal retention member, a distal portion expanded into a distal retention member, and a cylindrical saddle region extending between the proximal and distal retention members;
- wherein the proximal retention member, distal retention member and cylindrical saddle region define an open interior passage configured to permit flow therethrough;
- and
- wherein the proximal retention member includes first and second flanges separated from each other by a first distance, and the distal retention member includes third and fourth flanges separated from each other by a second distance, the first distance being greater than the second distance.
2 more elements
A stent, comprising:
- an elongate body having a constrained configuration,
- the elongate body having an expanded configuration with a proximal portion of the body expanded into a proximal retention member, a distal portion expanded into a distal retention member, and a cylindrical saddle region extending between the proximal and distal retention members;
- the proximal and distal retention members formed of a woven material and the cylindrical saddle region formed of a knitted material;
- wherein the proximal retention member, distal retention member and cylindrical saddle region define an open interior passage configured to permit flow therethrough;
- and
- wherein the proximal retention member includes first and second flanges separated from each other by a first distance, and the distal retention member includes third and fourth flanges separated from each other by a second distance, the first distance being greater than the second distance.
3 more elements
A stent, comprising:
- an elongate body having a constrained configuration,
- the elongate body having an expanded configuration with a proximal portion of the body expanded into a proximal retention member, a distal portion expanded into a distal retention member, and a cylindrical saddle region extending between the proximal and distal flanges;
- the proximal and distal retention members formed of a woven material and the cylindrical saddle region formed of a polymeric material;
- wherein the proximal retention member, distal retention member and cylindrical saddle region define an open interior passage configured to permit flow therethrough;
- and
- wherein the proximal retention member includes first and second flanges separated from each other by a first distance, and the distal retention member includes third and fourth flanges separated from each other by a second distance, the first distance being greater than the second distance.
3 more elements
Dependencies are inferred from the claim text.