Implantable or insertable medical devices for controlled delivery of a therapeutic agent
First Claim
1. A therapeutic-agent-releasing medical device for the sustained release of a therapeutic agent, said medical device comprising:
- (a) an implantable or insertable medical device;
(b) a release layer disposed over at least a portion of the implantable or insertable medical device, said release layer comprising (i) a styrene copolymer, which is not a block copolymer and which is not a graft copolymer, and (ii) an additional polymer; and
(c) a therapeutic agent, said release layer regulating the sustained release of the therapeutic agent from the medical device upon implantation or insertion of the device into a patient.
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Accused Products
Abstract
The present invention is directed to novel implantable or insertable medical devices that provide controlled release of a therapeutic agent. According to an embodiment of the present invention, a therapeutic-agent-releasing medical device is provided, which comprises: (a) an implantable or insertable medical device; (b) a release layer disposed over at least a portion of the implantable or insertable medical device; and (c) a therapeutic agent. The release layer comprises a styrene copolymer and at least one additional polymer. The release layer regulates the rate of release of the therapeutic agent from the medical device upon implantation or insertion of the device into a patient. The present invention is also directed to methods of forming the above implantable or insertable medical devices, methods of administering a therapeutic agent to a patient using such devices, and methods of modulating the release of therapeutic agent from such devices.
35 Citations
28 Claims
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1. A therapeutic-agent-releasing medical device for the sustained release of a therapeutic agent, said medical device comprising:
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(a) an implantable or insertable medical device; (b) a release layer disposed over at least a portion of the implantable or insertable medical device, said release layer comprising (i) a styrene copolymer, which is not a block copolymer and which is not a graft copolymer, and (ii) an additional polymer; and (c) a therapeutic agent, said release layer regulating the sustained release of the therapeutic agent from the medical device upon implantation or insertion of the device into a patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification