Research on Pulsatility of Blood Pumps Based on the Fuzzy PI Algorithm
Speed Modulation
TANG Min, YANG Ming
Department of Instrument Science
and Engineering, School of Electronic
Information and Electrical Engineering,
Shanghai Jiaotong University, Shanghai
200240, China
Abstract：The increase in pulsatility of centrifugal pumps can decrease the resistance of blood circulation.
Most centrifugal pumps in use now work with constant pressure, which provides nonpulsatile perfusion.
In non-pulsatile pumps, the pulsatility of the aortic pressure decreases with the increase of rational speed.
The low pulsatile value of aortic pressure has a negative effect on the structures and functions of blood
vessels. This paper builds the cardiovascular-pump model and simulates the model using MATLAB.
The fuzzy PI Controller, which uses the volatility of the speed of pumps to enhance the pulsatility of the
aortic pressure, was designed. Then we set up the experiment platform and linked the blood pump and the
controller based on STM32 to the mock cardiovascular system. The result of the experiment indicates that
the pulse pressure is 20 mmHg and the mean pressure is 100 mmHg, which can meet the hemodynamic
requirements of LVAD.
唐敏，杨明. 基于模糊PI速度调制的离心血泵搏动性
研究[J]. 中国医疗设备, 2016, 31(1): 21-25.
TANG Min, YANG Ming. Research on Pulsatility of Blood Pumps Based on the Fuzzy PI Algorithm
Speed Modulation. China Medical Devices, 2016, 31(1): 21-25.
