Patent ID: 9296011
Filing Date: 2016-03-29
CPC Classification: A61F,A61P,B05C,G11B

Claim Text:
1. An interventional device for delivery of a beneficial agent, the interventional device comprising: a first prosthesis capable of being deployed in a lumen, wherein at least a first portion of the first prosthesis has a first controlled local areal density of a beneficial agent, the first controlled local areal density varying as a continuous gradient along at least a length of the first portion of the first prosthesis; a second prosthesis configured to be connected to the first prosthesis, capable of being deployed in an overlapping relationship with the first prosthesis, wherein at least a second portion of the second prosthesis has a second controlled local areal density of a beneficial agent, the second controlled local areal density varying as a continuous gradient along at least the second portion of the second prosthesis; the first prosthesis and the second prosthesis, in combination, defining at least one non-overlapping segment and an overlapping segment, and the overlapping segment corresponding to the second portion overlapping the first portion and the overlapping segment having a length equal to the length of the first portion; and the first controlled local areal density of the first portion of the first prosthesis and the second controlled local areal density of the second portion of the second prosthesis providing in combination a varying amount of beneficial agent in a desired pattern over at least the length of the overlapping segment.