Patent ID: 6821294
Filing Date: 2004-11-23
Classification: A61F,D03D,D10B

Abstract:
A flat-woven tubular implantable prosthesis having a plurality of warp yarns and fill yarns, said tubular prosthesis comprising first and second open ends defining a tubular wall therebetween, said tubular wall havinga first woven extent with a first selected number of warp yarns therealong interwoven with a first selected number of fill yarns to define a first tubular portion having an internal diameter therealong; and transitioning from said first woven extend, a second woven extent contiguous with said first woven extent with at least a second selected number of warp yarns therealong interwoven with a second selected number of fill yarns defining a change in the number of warp yarns to define at least a second tubular internal diameter which is different from said first tubular internal diameter, said change in the number of warp yarns being at an edge of said transitional second woven extent, wherein adjacent warp yarns are not interwoven with successive fill yarns.