Radiopaque Polymeric Stent
AssigneeBoston Scientific Scimed, Inc.
InventorsClaude Clerc, F. Anthony Headley, JR., Forrest Whitcher, John Damarati
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Abstract
The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, at least one radiopaque filament is arranged for permanent attachment to a hollow tubular structure. The filament is desirably arranged in a linear direction traverse to a longitudinal length of the structure, the structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. The radiopaque filament improves external imaging of the tubular structure on fluoroscope or x-ray imaging equipment.
Claims21
1-51. (canceled)
An implantable radiopaque stent comprising:
- a polymeric hollow tubular structure, wherein the hollow tubular structure further comprises a tubular wall that defines an inner surface, an outer surface;
- and opposing first and second open ends;
- and
- a radiopaque filament arranged for permanent attachment to the hollow tubular structure in a first linear direction traverse to a longitudinal length of the hollow tubular structure, wherein the radiopaque filament comprises a radiopaque material;
- wherein, when an image of the stent is taken with fluoroscopy or x-ray imaging, at least one portion of the stent has not greater than about 36% void area, wherein the void area represents a void or distortion in the stent image.
An implantable radiopaque stent comprising:
- a polymeric hollow tubular structure, wherein the hollow tubular structure further comprises a tubular wall that defines an inner surface, an outer surface;
- and opposing first and second open ends;
- and
- a radiopaque filament arranged for permanent attachment to the hollow tubular structure in a first linear direction traverse to a longitudinal length of the hollow tubular structure, wherein the radiopaque filament comprises a metallic radiopaque material.
An implantable radiopaque stent comprising:
- a polymeric hollow tubular structure, wherein the hollow tubular structure further comprises a tubular wall that defines an inner surface, an outer surface;
- and opposing first and second open ends;
- and
- a plurality of radiopaque filaments arranged for permanent attachment to the hollow tubular structure in a first linear direction traverse to a longitudinal length of the hollow tubular structure, wherein the radiopaque filaments are approximately equidistantly spaced apart in a circumferential direction.
Dependencies are inferred from the claim text.