Curr Health Sci J, vol. 46, no. 3, 2020

Finite Element Analysis of a Novel Aortic Valve Stent

[Original Paper]

S. CASTRAVETE(1), D. MAZILU(2), L.G. GRUIONU(3), C. MILITARU(4,6), S. MILITARU(4,6), A.L. UDRISTOIU(5), A.V. IACOB(5), G. GRUIONU(3)


(1)Caelynx Europe Ltd., Craiova, Romania,
(2)National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA,
(3)Faculty of Mechanics, University of Craiova, Romania,
(4)Cardiomed Ltd.,
(5)Faculty of Automation, Computers and Electronics, University of Craiova, Romania,
(6)Faculty of Medicine and Pharmacy of Craiova, Romania


Abstract:

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.


Keywords:
Aortic valve, stent, finite elements, nitinol.



Corresponding:
Gabriel Gruionu, Faculty of Mechanics, University of Craiova, Craiova, Romania, e-mail: gruionu@gmail.com


DOI 10.12865/CHSJ.46.03.11 - Download PDF