Radiopaque Compositions, Stents and Methods of Preparation

摘要

The invention relates to an implantable radiopaque stent adapted to be disposed in a body lumen. In one aspect of the invention, a plurality of elongate filaments including one or more radiopaque filaments are arranged to form a hollow tubular structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end. One of the open ends of the stent is formed by an intersection of adjacent filament ends. A radiopaque compound is applied to the intersection, the radiopaque compound comprising radiopaque material and polymeric material. The radiopaque compound and radiopaque filament provide improved external imaging of the tubular structure on imaging equipment.

主权项

1. A radiopaque stent comprising:
a plurality of elongate filaments, the plurality of filaments are braided or woven to form a hollow tubular structure having a tubular wall that defines an inner surface and an outer surface and opposing first open end and second open end; the braided or woven hollow tubular structure comprises a plurality of recesses formed by an intersection the braided or woven plurality of filaments; at least one of the first open end and the second open end are formed by an intersection of adjacent ends of the plurality of filaments; a plurality of recesses formed by a plurality of intersections of the plurality of filaments; and a radiopaque composition comprising radiopaque material and polymeric material is disposed in one or more of the plurality of recesses wherein the radiopaque compound improves external imaging of the tubular structure on imaging equipment.