Considerations to Achieving Pulsatility for Left Ventricular Assist Devices through BLDC Motor by using Closed Loop Control system with PID Controller

Abstract

Abstract: In the past few years, several people have been diagnosed with several heart failures. Implantation of the ventricular Assist life saving device, gives support for the heart to function normally. Mechanical circulatory support systems such as Ventricular Assist Devices (VADs) and Total Artificial Hearts (TAHs) are commonly used to replace a diseased heart and play an important role in saving people's lives. Mechanical circulatory devices known as left ventricular assist devices (LVADs), these devices are currently, the most commonly used to help patients with a variety of heart issues. In the beginning, pulsatile flow devices are used, and further advance switched to continuous-flow devices. Despite the fact that these devices have many benefits, they have reported several difficulties during work. Several trials were performed to prevent these problems. The aim of this study is to achieve pulsatility in Ventricular Assist Devices. This paper describes the design of a closed-loop control with a PID controller system that has been implemented to achieve pulsatile flow in a device by varying the speeds of the BLDC motor. Its performance is evaluated and should be compared with the standards.

Index Terms: Total Artificial Hearts, Left Ventricular Assist Devices, Pulsatile flow, BLDC motor, PID controller