Patent ID: 7828837

Claim:
An endograft for a vessel having a vascular branch extending from the vessel, said endograft comprising: a main body having a wall defining an internal surface and an exterior surface and adapted to be placed within the vessel, the wall defining a single lumen at a proximal end and a single lumen at a terminal end of said main body, and a main body aperture extending from the interior surface to the exterior surface at least one expandable stent secured to said main body; and an open tunnel independent of an expandable stent associated with a circumference of said runnel and having a length extending between a mouth and a terminus, said tunnel having a uniform cross-sectional area between the mouth and along the length to the terminus, the terminus of said runnel sealed to the interior surface of said main body about the main body aperture, said tunnel secured along a majority of the tunnel length to the internal surface to provide fluid communication between the interior surface and the exterior surface through the main body aperture and with the vascular branch in proximity to the main body aperture, wherein the terminus of said tunnel is flush with the external surface of said main body.