The goal of this study is a technology analysis of a revolution for the management of valvular heart diseases given by new technological system based on transcatheter artificial aortic valve, a delivery catheter and a loading system for the treatment of aortic stenosis (a narrowing of the aortic...

The definition and explanation of concepts in science are a vital scientific activity because a scientific field can develop only on the base of new comprehensive concepts and categories of concepts and their applications that enlarge the domain of scientific analyses. The conception technology...