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US 8,273,402 B2Granted
Drug coated stent with magnesium topcoat
AssigneeMedtronic Vascular, Inc.
InventorsEric Yu, James Mitchell
Life of this patent
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Abstract
A method for manufacturing a drug carrying stent includes applying at least a first therapeutic agent to at least an outer portion of a stent framework and applying a first magnesium coating on at least a first portion of the applied first therapeutic agent.
Claims16
A method for manufacturing a drug carrying stent, the method comprising:
- applying a first drug layer to at least an outer portion of a stent framework, the first drug layer being polymer-free and including one or more first therapeutic agents;
- applying a first magnesium coating layer on at least a portion of the first drug layer, the first magnesium coating layer consisting of magnesium;
- applying a second drug layer consisting of a second therapeutic agent on the first magnesium coating layer;
- and
- applying a second magnesium coating layer on the second drug layer.
2 more elements
A method of treating a vascular condition, the method comprising:
- selecting at least a first therapeutic agent;
- selecting at least a second therapeutic agent;
- fabricating a drug coated stent, the fabricating the drug coated stent including:
- applying the selected first therapeutic agent to a stent framework to form a first drug layer, the first drug layer being polymer-free,
- covering the first drug layer with a first magnesium coating layer consisting of magnesium,
- applying the selected second therapeutic agent to the first magnesium coating layer to form a second drug layer, and
- covering the second drug layer with a second magnesium coating layer;
- inserting the fabricated drug coated stent within a body;
- eluting the second therapeutic agent from the drug coated stent within the body after the second magnesium coating layer covering the second therapeutic agent degrades;
- and
- eluting the first therapeutic agent from the drug coated stent within the body after the first magnesium coating layer covering the first therapeutic agent degrades.
8 more elements
Dependencies are inferred from the claim text.