Aortic arch prosthetic graft
View Patent ↗An implantable textile prosthesis includes a first woven section having a tubular branch wall defining a fluid passageway therethrough. The tubular branch wall includes an elongate tubular extent and an asymptotically flared tubular extent, which is asymptotic with respect to the tubular branch wall. The asymptotically flared tubular extent includes 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 the fill yarns to provide a seamless and substantially fluid-tight transition region along said flared tubular extent. The tubular branch wall may be sutured to an elongate tubular main wall to provide an implantable tubular textile prosthesis particularly useful in branched end-to-side anastomoses. The tubular main wall may be heat-settably arched to resemble the natural arch of the aorta.
1. 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.
2. The prosthesis of claim 1 , wherein said woven sections are constructed of material selected from the group consisting of polyester, polypropylene, polyethylene, polyurethane, polytetrafluoroethylene and mixtures thereof.
3. The prosthesis of claim 1 , wherein said first end of said tubular branch wall is sutured to said second woven section.
4. The prosthesis of claim 1 , wherein said plurality of elongate tubular extents are circumferentially offset with respect to said tubular main wall.
5. The prosthesis of claim 1 , wherein said plurality of elongate tubular extents are dimensionally different.
6. The prosthesis of claim 1 , further including an elongate tubular port extending laterally from said tubular main wall at a location remote from said tubular branch wall.