Importance

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Abstract

The present invention is directed to a coated medical device for delivering a biologically active agent to a body tissue such as a body lumen, said coated medical device having an increased coating surface area for adjusting the release rate of a biologically active agent, such as a drug, from the coating. The medical device has a coating comprising an outer surface having a surface area and capable of being in direct contact with the body tissue, and a plurality of indentations in the outer surface of the coating. The surface area of the coating outer surface is therefore greater than the surface area of the coating outer surface absent the indentations. The present invention is also directed to a method for making a medical device comprising forming a coating comprising a polymer and a biologically active agent on a surface of a medical device, wherein the coating comprises an outer surface capable of being in direct contact with body tissue, and increasing the surface area of the outer surface by forming indentations on the outer surface of the coating.

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First Claim