中国医疗设备Issue(1)：21-25,5.DOI:10.3969/j.issn.1674-1633.2016.01.005
基于模糊PI速度调制的离心血泵搏动性研究
Research on Pulsatility of Blood Pumps Based on the Fuzzy PI Algorithm Speed Modulation
摘要
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.关键词
心室辅助/循环系统与血泵耦合模型/主动脉压/搏动性Key words
ventricular assist device/cardiovascular-pump system coupled model/aortic pressure/pulsation分类
信息技术与安全科学引用本文复制引用
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,(1):21-25,5.基金项目
国家自然科学基金（No.81571831）；上海市医疗器械科技支撑项目（No.14441900500）；上海交通大学“医工（理）交叉研究基金”项目（No.YG2011ZD03）。 （）
