Preform for and an endoluminal prosthesis

摘要

An endoluminal prosthesis may include a tubular graft extending in a longitudinal direction, where the graft has an inner surface forming a lumen extending a length of the graft. An elongate member may be attached to the graft in a circumferentially and longitudinally extending manner such that the elongate member forms a series of longitudinally spaced apart turns, each turn extending substantially around a circumference of the graft. The elongate member may torsion the graft in at least the circumferential direction and cause the graft to form circumferentially and longitudinally extending folds in the portions of the graft disposed between longitudinally adjacent turns of the elongate member.

主权项

1. A method of making an endoluminal prosthesis, the method comprising:
providing a tubular graft formed of biocompatible material having a proximal end, a distal end, and a lumen disposed therethrough; providing an elongate member; positioning the elongate member longitudinally and circumferentially about an outer surface of the graft to form a plurality of torqued turns; and attaching the elongate member to the graft such that the elongate member torsions the graft in at least the circumferential direction, and causes the graft to form circumferentially and longitudinally extending folds in the portions of the graft disposed between longitudinally adjacent turns of the elongate member.