Browsing by Subject "Nitinol"

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    Finite Element Analysis of a Novel Aortic Valve Stent
    (Medical University Publishing House Craiova, 2020-09-30) Castravete, Ştefan; Mazilu, Dumitru; Gruionu, Lucian Gheorghe; Militaru, Cristian; Militaru, Sebastian; UdriŞtoiu, Anca-Loredana; Iacob, Andreea Valentina; Gruionu, Gabriel; Medicine, School of Medicine
    Worldwide, one of the leading causes of death for patients with cardiovascular disease is aortic valve failure or insufficiency as a result of calcification and cardiovascular disease. The surgical treatment consists of repair or total replacement of the aortic valve. Artificial aortic valve implantation via a percutaneous or endovascular procedure is the minimally invasive alternative to open chest surgery, and the only option for high-risk or older patients. Due to the complex anatomical location between the left ventricle and the aorta, there are still engineering design optimization challenges which influence the long-term durability of the valve. In this study we developed a computer model and performed a numerical analysis of an original self-expanding stent for transcatheter aortic valve in order to optimize its design and materials. The study demonstrates the current valve design could be a good alternative to the existing commercially available valve devices.