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US 9,801,980 B2Granted
Polymer stents and methods of manufacture
AssigneeMicroVention, Inc.
InventorsWataru Karino, Steve Plotkin, Gregory M. Cruise
Life of this patent
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Abstract
Methods of forming and/or manufacturing polymeric stents are disclosed. Polymeric stents are also disclosed.
Claims9
A method of forming a polymeric stent comprising:
- preparing a prepolymer solution comprising a macromer, a monomer and a crosslinker, wherein the macromer includes ethoxylated trimethylol propane triacrylate;
- forcing the prepolymer solution onto a textured surface of a first tube wherein the forcing is accomplished by injecting the prepolymer solution into voids created by the textured surface of the first tube and an inner surface of a second tube when the first tube fits inside the second tube and the textured surface of the first tube fits against the inner surface of the second tube;
- initiating polymerization of the prepolymer solution to form a polymeric tube on the textured surface;
- and
- modifying the polymeric tube into a desired shape or pattern, wherein the formed polymeric stent has a hydrated radial force of about 1 gf to about 50 gf.
2 more elements
A method of forming a polymeric stent comprising:
- preparing a prepolymer solution comprising a macromere, a monomer and a cross linker, wherein the macromere includes ethoxylated trimethylol propane triacrylate;
- distributing the prepolymer solution onto an outer textured surface of a tube by injecting the prepolymer solution between the outer textured surface and the inner surface of a second tube fit substantially around the outer textured surface wherein the outer textured surface of the tube fits against the inner surface of the second tube;
- initiating polymerization of the prepolymer solution using heat;
- forming a polymeric stent on the outer textured surface;
- and
- removing the polymeric stent from the tube, wherein the formed polymeric stent has a hydrated radial force of about 1 gf to about 50 gf.
3 more elements
A method of forming a polymeric stent comprising:
- preparing a prepolymer solution comprising a macromere, a monomer and a cross linker, wherein the macromere includes ethoxylated trimethylol propane triacrylate;
- distributing the prepolymer solution onto an inner textured surface of a tube by injecting the prepolymer solution between the inner textured surface and an outer surface of a second tube fit substantially inside the inner textured surface wherein the inner textured surface fits against the outer surface of the second tube;
- initiating polymerization of the prepolymer solution using heat;
- forming a polymeric stent on the inner textured surface;
- and
- removing the polymeric stent from the tube, wherein the formed polymeric stent has a hydrated radial force of about 1 gf to about 50 gf.
3 more elements
Dependencies are inferred from the claim text.