Emulation of Ventricular Assist Devices based on Fuzzy Logic Control

Abstract

Abstract:  These days we can see that many people are suffering from different heart diseases. These heart diseases or heart failures due to some problems are one of the major reasons for the deaths of many people. To avoid these problems, they are searching for heart donors to transplant the heart. Due to the less availability of heart donors, many people are dying because of heart failure. To overcome this problem, we have to develop a device that will support the circulatory system of the body. These devices are termed Ventricular Assist Devices (VADs). These VADs are used to help in pumping the blood from the heart to other body parts in case of heart failure. They play a key role in saving the lives of the people who are suffering from different heart diseases and the people who are at the end stage of their heart failure. In previous cases, many of the experiments were conducted on continuous flow systems. But due to some complications that are resulted during their operation these continuous flow devices are not recommended. These continuous flow devices are replaced with pulsatile flow devices which represent the flow of blood from the heart to other body parts. This pulsatile flow can be achieved by controlling the speed of the BLDC motor. To control the speed of the BLDC motor we use different controllers in which a PID controller and Fuzzy Logic Controllers are used efficiently and which will give better results when compared to P and PI controllers.