Optimization parameters of the heart pump design

10th International Symposium Machine and Industrial Design in Mechanical Engineering

工业技术;机械制造

Markui, V.^1 ; Krizmani, S.^1 ; Volari, F.^1

University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Ivana Luia 5, Zagreb

10000, Croatia^1

关键词: Design limitations;    Heart assist device;    Hemocompatibility;    Mechanical damages;    Optimization parameter;    Quality assessment;    Recirculation zones;    Wall shear stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/393/1/012125/pdf
DOI  :  10.1088/1757-899X/393/1/012125

学科分类：工业工程学

来源: IOP

【 摘 要 】

In this paper, research of optimization parameters of continuous flow heart pump is presented. The application of centrifugal pumps as heart assist devices imposes design limitations on the geometry of the heart pump. Geometry and pump parameters affect the performance and the hemocompatibility of the heart pump. The main quality assessment factor for heart pump is the pump hemocompatibility i.e., the amount of mechanical damage caused by a pump on blood cells. Besides stagnation zones and recirculation zones, wall shear stress is parameter that is used to predict pump hemocompatibility. Second important factor is minimal volume of heart pump with acceptable anatomical fitting. Additional factors are high efficiency and durability. The aim of the research is to propose the optimal design of bladeless centrifugal heart pump. The dimensionless optimization parameters of the heart pump design are derived from Navier - Stokes equation. In conclusion, dimensionless optimization parameters of bladeless centrifugal continuous flow heart pump are presented.