In Vitro Fatigue Properties of Prototype Woven Vascular Prosthesis with Poly (trimethylene terephthalate) Filaments as Circumferential Yarns

Abstract

As far as we know, fatigue properties of woven vascular prosthesis with PTT filaments as circumferential yarns which could improve compliance due to their lower initial modulus and better elasticity had not yet studied. In this study viscoelastic properties of PTT filaments were studied and fatigue properties of woven vascular prostheses with PTT filaments as circumferential yarns were tested using an accelerated fatigue tester. The changes of each property before and after the fatigue testing show evidence of fatigue. It will be more evidence of fatigue with increasing fatigue cycles and PTT tubular samples show better fatigue behavior compared to PET tubular samples.