Stent with radiopaque coating consisting of particles in a binder
First Claim
Patent Images
1. A radiopaque stent, comprising:
- a central core structure defining the shape of the stent; and
a biocompatible outer radiopaque coating having particles of a radiopaque material dispersed within a binder which coats the central core structure, wherein the size of the particles of radiopaque material is no more than one tenth of the thickness of the coating.
1 Assignment
0 Petitions
Accused Products
Abstract
A stent configuration wherein particles of radiopaque material contained within a polymeric binder is coated onto a stent core structure to enhance the radiopacity of the stent. The stent is initially formed and rendered radiopaque after all surfaces are coated with the radiopaque coating. The amount of particles of radiopaque materials can be varied (by volume) within the binder to either increase or decrease the radiopacity of the binder coating in order to obtain an optimal amount of radiopacity to the stent. The thickness of the coating also can be varied to fine tune the radiopacity of the stent.
353 Citations
26 Claims
-
1. A radiopaque stent, comprising:
-
a central core structure defining the shape of the stent; and
a biocompatible outer radiopaque coating having particles of a radiopaque material dispersed within a binder which coats the central core structure, wherein the size of the particles of radiopaque material is no more than one tenth of the thickness of the coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A method for forming a radiopaque stent, comprising the steps of:
-
providing a tube of structural material;
forming voids in said tube to render said tube expandable; and
coating said expandable tube with a binder having particles of a radiopaque material, wherein the size of the particle of radiopaque material is no more than one-tenth of the thickness of the coating. - View Dependent Claims (16, 17, 18, 19, 20, 21)
-
-
22. A radiopaque stent, comprising:
-
a central core structure defining the shape of said stent; and
a biocompatible outer radiopaque coating having particles of a radiopaque material dispersed within a binder which coats the central core structure, the particles being made from a material having temporary radiopacity. - View Dependent Claims (23, 24, 25, 26)
-
Specification