Implantable medical device coated with a bioactive agent
First Claim
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1. An implantable medical device having at least one surface,a first mixture comprising an antisense compound and a poly(alkyl cyanoacrylate) polymer coated directly on the at least one surface to form a first polymer layer, anda second mixture comprising a solvent and a biodegradable polymer coated directly on at least a portion of the first layer to form a second polymer layer that is the outermost layer of the device, wherein the second mixture is free of the antisense compound.
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Abstract
The present invention provides an implantable medical device comprising a bioactive agent and poly(alkyl cyanoacrylate) polymer. In one embodiment of the invention, the bioactive agent is a water-soluble material, such as an antisense agent.
17 Citations
20 Claims
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1. An implantable medical device having at least one surface,
a first mixture comprising an antisense compound and a poly(alkyl cyanoacrylate) polymer coated directly on the at least one surface to form a first polymer layer, and a second mixture comprising a solvent and a biodegradable polymer coated directly on at least a portion of the first layer to form a second polymer layer that is the outermost layer of the device, wherein the second mixture is free of the antisense compound.
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17. An implantable medical device having at least one surface and having a first layer consisting essentially of an antisense compound and a poly(alkyl cyanoacrylate) polymer coated directly on the at least one surface, and a second polymer coated directly onto at least a portion of the first layer, wherein the second polymer is a biodegradable polymer forming an outermost surface of the device,
wherein the poly(alkyl cyanoacrylate) polymer comprises an alkyl group comprising between 3 and 12 carbon atoms, wherein the second polymer is selected from a group consisting of polylactic acid, poly-L-lactic acid, poly(D,L-lactide), poly(lactide-co-glycolide), poly(ethylene glycol), polyglycolide and block copolymers of these compounds and wherein the poly(alkyl cyanoacrylate) polymer and the second polymer are present at a weight ratio of between 400: - 1 and 1;
400.
- 1 and 1;
Specification