The present invention relates generally to medical devices with therapy eluting components and methods for making same. More specifically, the invention relates to implantable medical devices having at least one
porous layer, and methods for making such devices, and loading such devices with therapeutic agents. A mixture or
alloy is placed on the surface of a
medical device, then one component of the mixture or
alloy is generally removed without generally removing the other components of the mixture or
alloy. In some embodiments, a
porous layer is adapted for bonding non-
metallic coating, including
drug eluting polymeric coatings. A
porous layer may have a random pore structure or an oriented or directional grain porous structure. One embodiment of the invention relates to medical devices, including
vascular stents, having at least one porous layer adapted to
resist stenosis or cellular proliferation without requiring
elution of therapeutic agents. The invention also includes methods, devices, and specifications for loading of drugs and other therapeutic agents into
nanoporous coatings.