Biodegradable Metal Barrier Layer for a Drug-Eluting Stent
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United States of America Patent
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Issued Date -
Oct 2, 2008
app pub date -
Mar 26, 2007
filing date -
Mar 26, 2007
priority date (Note) -
Abandoned
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Abstract
An implantable medical device includes a substrate, a drug-impregnated layer deposited over the substrate, and a barrier layer at least partially covering the drug-impregnated layer. The barrier layer may be a biodegradable metal, biodegradable metal oxide, or biodegradable metal alloy, such as, magnesium, a magnesium oxide or a magnesium alloy. The drug-impregnated layer includes a therapeutic substance, such as, antineoplastic, anti-inflammatory, antiplatelet, anticoagulant, fibrinolytic, thrombin inhibitor, antimitotic, antiallergic, and antiproliferative substances.
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