Patent ID: 7694683

Claim:
A device for implantation within a body lumen of a human or veterinary subject, said device comprising: an intraluminal member having at least three radially-expandable legs, each of said legs including first and second segments joined at an apex, said second segment being in a radially-expandable, spaced-apart relationship from said first segment such that an acute angle is formed between said first and second joined segments in the expanded configuration, at least one of said legs including a lumen therewithin in the expanded configuration and openings on the surface of said legs, said openings comprising semi-permeable membranes, said intraluminal member including a fibrous matrix disposed within the confines of the radially expandable legs, the intraluminal member being implantable in a body lumen having a wall, the fibrous matrix structured to promote tissue or cellular ingrowth from the lumen wall into the fibrous matrix disposed in the intraluminal member, said tissue or cellular ingrowth causing occlusion of the body lumen; and a quantity of therapeutic substance contained within said at least one leg lumen such that the therapeutic substance will be delivered from the lumen of said leg through the semi-permeable membrane to a target tissue for a period of time following implantation of the intraluminal member within the body lumen.