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US 7,682,647 B2Granted
Thermal treatment of a drug eluting implantable medical device
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorsSyed F. A. Hossainy, Fuh-Wei Tang, Stephen D. Pacetti, Jeff Royal, Dorie M. Happ, Kurt Scheinpflug, Ty Hu
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Abstract
A coating and a method of coating an implantable medical device, such as a stent, is disclosed. The method includes subjecting the coating to a thermal condition which can result in reduction of the rate of release of an active agent from the coating subsequent to the implantation of the device.
Claims21
A method of manufacturing a stent coating, comprising:
- applying a composition to a stent, the composition including a polymer and a solvent;
- allowing the solvent to evaporate to form a coating;
- and
- exposing the coating to a temperature equal to or greater than the glass transition temperature of the polymer for a duration of time, wherein the polymer is a semicrystalline polymer having about 40 to 75 percent crystallinity prior to the act of exposing.
1 more element
Dependencies are inferred from the claim text.