Method of coating implantable medical devices
AssigneeAdvanced Cardiovascular Systems, Inc.
InventorSyed F. A. Hossainy
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Abstract
A method of coating a medical device, such as a stent is provided. The method can include forming a polymer layer containing a drug on the device, applying a polymer melt free from any solvents to the polymer layer to form a topcoat layer, wherein the during the application of the polymer melt the migration of the drug from the polymer layer is prevented or significantly minimized.
Claims13
A method for coating an implantable medical device, comprising forming a polymer layer containing a drug on the device, and applying a melt to the polymer layer to form a topcoat layer, the melt including a polymer and a minimal amount of solvent(s) that is less than 20% of the total volume of the melt such that during the application of the melt, migration of the drug from the polymer layer into the topcoat layer is prevented or significantly minimized, wherein the melt is not completely free of the solvent(s).
A method for coating an implantable medical device, comprising forming a polymer layer containing a drug on the device, and applying a polymer composition in a liquid state to the polymer layer to form a topcoat layer, the polymer composition including a polymer and a minimal amount of solvent(s) that is less than 20% of the total volume of the polymer composition such that, during the application of the topcoat layer, migration of the drug from the polymer layer into the topcoat layer is prevented or significantly minimized, wherein the polymer composition is not completely free of the solvent(s).
Dependencies are inferred from the claim text.