Title :
A Study on a LVAD of a Wear-free Heart Pump
Author :
Chang, Yu ; Feng, Fuzhou ; Qiao, Aike ; Wu, Suicai ; Liu, Youjun ; Yang, JooHo ; Zeng, Yanjun
Author_Institution :
Biomed. Eng. Center, Beijing Univ. of Technol.
Abstract :
This paper deals with hydrodynamic elements in a left ventricular assist device (LVAD) of a wear-free heart pump, a rigid rotor with translational and slop motion suspended in an active magnetic bearing (AMB) system. First, the modeling of the dynamic behaviour of the rotor is pointed out. Then, the control strategy is developed. It is based on a suggested control method considering with the coupling effect from both ends of the rotor. The controller is executed on a DSP board. Simulation results and experiment results show the efficiency of the control strategy and validates the method applied to the pump
Keywords :
biomedical equipment; cardiology; magnetic bearings; medical control systems; prosthetics; rotors; DSP board; LVAD; active magnetic bearing system; control strategy; hydrodynamic elements; left ventricular assist device; rigid rotor; slop motion; translational motion; wear-free heart pump; Artificial heart; Biomedical engineering; Cities and towns; Clinical trials; Digital signal processing; Displacement control; Hydrodynamics; Magnetic forces; Magnetic levitation; Mechanical bearings;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616213
