Method and system for irradiation of a drug eluting implantable medical device
First Claim
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1. A method of manufacturing a drug delivery implantable medical device, comprising exposing a coating of the device to charged particles for a duration, the coating comprising a polymer and an active agent;
- wherein the coating comprises a barrier layer disposed over a layer comprising the polymer and the active agent; and
wherein the charged particles create tracks that only penetrate through the barrier layer and stop at an upper surface of the layer comprising the polymer and the active agent.
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Abstract
A method and system for modifying a drug delivery polymeric substrate for an implantable device, such as a stent, is disclosed.
142 Citations
26 Claims
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1. A method of manufacturing a drug delivery implantable medical device, comprising exposing a coating of the device to charged particles for a duration, the coating comprising a polymer and an active agent;
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wherein the coating comprises a barrier layer disposed over a layer comprising the polymer and the active agent; and wherein the charged particles create tracks that only penetrate through the barrier layer and stop at an upper surface of the layer comprising the polymer and the active agent. - 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)
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Specification