Patent ID: 7833266

Claim:
A stent, the stent having a body comprising a plurality of members, the plurality of members including struts and connectors, the body comprising: a first region, the first region comprising a first plurality of struts arranged in a plurality of circumferential bands, longitudinally adjacent bands being engaged by connectors, each strut defining a first plurality of coating retainers, all of the coating retainers defined by a strut being arranged in a first density, each coating retainer having a depth, width, and length and having a first volume, each first coating retainer having a first volume of a first therapeutic agent, the first volume of first therapeutic agent equal to the first volume of the coating retainers, the first plurality of coating retainers eluting a first total volume of a first therapeutic agent; and a second region longitudinally adjacent to the first region, the second region comprising a second plurality of struts arranged in a plurality of circumferential bands, longitudinally adjacent bands being engaged by connectors, each strut defining a second plurality of coating retainers, all of the coating retainers defined by a strut being arranged in a second density, each coating retainer having a depth, width, and length and having a second volume, each coating retainer having a second volume of a second therapeutic agent, the second volume of second therapeutic agent equal to the second volume of the second coating retainers, the plurality of second coating retainers eluting a second total volume of a second therapeutic agent; and a side branch, the side branch in an expanded state extending at an angle to the body of the stent, the side branch comprising a third plurality of struts, each strut defining a plurality of coating retainers, all of the coating retainers defined by a strut being arranged in a third density, each coating retainer having a depth, width, and length; wherein the first density is greater than the second density and the second density is greater than the third density, the first total volume of therapeutic agent is greater than the second total volume of therapeutic agent, and the first volume of each of the first plurality of coating retainers is greater than the second volume each of the second plurality of coating retainers.