Patent ID: 7189257

Claim:
An implantable textile prosthesis comprising: a first woven section comprising an elongate tubular main wall defining a fluid passageway therethrough; wherein said tubular main wall is heat-settably arched to resemble the natural arch of the aorta; and a second woven section comprising a tubular branch wall defining a fluid passageway therethrough, said tubular branch wall including a first end and a second end, said first end of said tubular branch wall being secured to said first woven section to provide said tubular branch wall extending laterally in a substantially perpendicular fashion from said tubular main wall to establish fluid communication between said tubular main wall and said tubular branch wall; wherein said first end of said tubular branch wall includes an asymptotically flared tubular extent, asymptotic with respect to said tubular branch wall, said asymptotically flared tubular extent including a weaving pattern having a plurality of warp yarns and fill yarns and incorporating a gradual change in the number of warp yarns with respect to said fill yarns to provide a seamless and substantially fluid-tight transition region along said flared tubular extent, and wherein said tubular branch wall further includes a plurality of elongate tubular extents contiguous with said asymptotically flared tubular extent.