Patent ID: 8227016

Claim:
A method of applying a drug-polymer coating on a stent, comprising: dipping a stent framework into a first polymeric solution, wherein the first polymeric solution comprises a first polymer, a first therapeutic agent, and a first solvent, the first polymeric solution further comprising a first monomer including acrylic acid, a second monomer including vinyl pyrollidone, and an initiator; partially drying the first polymeric solution on the stent framework to partially remove the first solvent; curing the partially dried first polymeric solution to form a thin drug-polymer layer on the stent framework; and repeating the steps of dipping the stent framework into the first polymeric solution, partially drying the first polymeric solution on the stent framework, and curing the partially dried first polymeric solution until a target thickness of the drug-polymer coating with the thin drug-polymer layers is disposed on the stent framework.