Reflowed drug-polymer coated stent and method thereof
AssigneeMedtronic Vascular, Inc.
InventorRangarajan Sundar
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Abstract
The present invention provides a method of forming a drug-polymer coated stent. A polymeric coating is applied onto at least a portion of a stent framework and dried. A jet of heated gas is directed towards excess coating portions of the dried polymeric coating. The excess coating portions, which extend into apertures of the stent framework, are removed from the apertures of the stent framework by reflowing the polymeric coating with the directed jet of heated gas. A drug-polymer coated stent with a reflowed drug-polymer coating and a system for treating a vascular condition are also disclosed.
Claims12
A method of forming a drug-polymer coated stent, comprising:
- applying a polymeric coating onto at least a portion of a stent framework;
- drying the applied polymeric coating on the stent framework;
- directing a jet of heated gas towards excess coating portions of the dried polymeric coating, the excess coating portions extending into apertures of the stent framework;
- and
- reflowing the polymeric coating with the directed jet of heated gas to remove the excess coating portions from the apertures of the stent framework.
Dependencies are inferred from the claim text.