Patent ID: 6053938
Filing Date: 2000-04-25
Classification: A61F

Abstract:
A textile, tubular vessel prosthesis having two ends and a length comprising:(1) a plurality of yarns or threads having an arrangement that is knitted, a selected glass transition point, and a melting temperature; a first diameter at a first end of the prosthesis; a second diameter at a second end of the prosthesis; with the second diameter being smaller than the first diameter; wherein the prosthesis has a substantially constant number of yarns or threads in cross-section over the entire length and forms a conical shape;(2) has a tensile strength of the yarns or threads and a bursting pressure which are substantially constant over the length; and(3) exhibits no stretching or elongation of the knitted yarns or threads in the vicinity of the first end compared with the knitted yarns or threads in the vicinity of the second end.