Back to results
US 2025/0352321 A1Published application
Hook and cross stents with improved characteristics
AssigneeBoston Scientific Scimed, Inc.
InventorsDANIEL TUCK, GARY GILMARTIN, FIONN STAPLETON, THOMAS MARTIN KEATING, JOHN THOMAS O'DRISCOLL, CELINE GLYNN, HARRY MULLEADY
Life of this patent
Estimating the term…
Abstract
A stent comprises a tubular scaffold formed of a single filament that is woven to define a plurality of open cells; wherein the plurality of open cells includes a helical row of large open cells, a first helical row of small open cells, and a second helical row of small open cells; and a reinforcing filament extending substantially longitudinally along the tubular scaffold.
Claims20
A stent comprising:
- a tubular scaffold formed of a single filament that is woven to define a plurality of open cells;
- wherein the plurality of open cells includes a helical row of large open cells, a first helical row of small open cells, and a second helical row of small open cells;
- and
- a reinforcing filament that extends substantially longitudinally along the tubular scaffold.
1 more element
A self-expanding stent, comprising:
- a tubular scaffold formed of a single filament;
- wherein the single filament is woven to form a plurality of open cells throughout the tubular scaffold;
- wherein each of the plurality of open cells is defined by at least two pairs of opposing linear sections of the single filament and at least two hooked sections of the single filament;
- wherein the single filament is woven to form the at least two pairs of opposing linear sections and the at least two hooked sections, and wherein the single filament includes first and second bends that are intertwined at each of the at least two hooked sections;
- a reinforcing filament extending substantially longitudinally along the tubular scaffold, wherein the reinforcing filament is formed of a different material than the tubular scaffold;
- and
- a polymeric covering fixedly attached to the tubular scaffold, wherein the reinforcing filament and the tubular scaffold are embedded in the polymeric covering.
4 more elements
A method of forming a stent, the method comprising:
- receiving a tubular scaffold for of a single filament extending from a first end to a second end of the tubular scaffold, wherein the single filament is woven to form a plurality of open cells throughout the tubular scaffold, wherein each of the plurality of open cells is defined by at least two pairs of opposing linear sections of the filament and at least two hooked sections of the filament;
- interweaving a reinforcing filament with the tubular scaffold to form a reinforced framework, wherein the reinforcing filament is formed of a different material than the tubular scaffold;
- and
- covering the reinforced framework with a polymeric covering to form the stent, wherein a length of the tubular scaffold from the first end to the second end is configured to change by less than 5% when shifting between a collapsed delivery configuration and an expanded deployed configuration.
1 more element
Dependencies are inferred from the claim text.