Estimation of kinematic parameters in a model of artificial aortic valve leaflets

Abstract

Currently, one of the least invasive methods of replacing a dysfunctional aortic valve in humans is Transcatheter Aortic Valve Implantation (TAVI). The shapes of expandable stents have an influence on the geometry of the leaflets and differ from those mounted by open heart valve surgery. There are different types of balloon and self-expandable TAVI valves. For the purposes of analysis of the influence of constraints on the kinematic parameters of aortic valve leaflets, prototype leaflets were made of polyurethanes. Results from the numerical model and a machine for testing the durability of the heart valve are presented.