Patent ID: 8702789

Claim:
An endoprosthesis assembly, comprising: an endoprosthesis comprising an impermeable inner wall defining an endoprosthesis lumen sized and shaped to permit fluid to flow therethrough and a permeable outer wall adjacent to the inner wall, the permeable outer wall configured so that fluid can flow through the permeable outer wall due to its permeability; a distal balloon positioned at or near a distal end of the endoprosthesis, the distal balloon capable of inflation to anchor the distal end of the endoprosthesis within a luminal organ; and a proximal balloon positioned at or near a proximal end of the endoprosthesis, the proximal balloon capable of inflation to anchor the proximal end of the endoprosthesis within the luminal organ and a first tube defining one or more first tube openings, the first tube coupled to an outside of the inner wall of the endoprosthesis in a first configuration whereby the one or more first tube openings are exposed along the outside of the inner wall of the endoprosthesis; wherein when the endoprosthesis assembly is positioned within the luminal organ at or near an aneurysm sac, inflation of the distal balloon and the proximal balloon effectively isolates the aneurysm sac and prevents fluid within the aneurysm sac from flowing past the distal balloon and the proximal balloon and into other areas of vasculature adjacent to the aneurysm sac.