The pump control importance of the pressure sensor assigned to the roller pumps in the Heart Lung Machine

Abstract

The role of pressure sensors in pump regulation is very important in the Heart Lung Machine. Pressure sensors continuously monitor and control the blood pressure in the device's circulatory system. In this way, parameters such as the speed and power of the pumps can be adjusted according to the needs of the patient. Pump regulation is vital to ensure that the patient's blood circulation continues in a stable manner and to ensure that the surgery is performed safely. PID (Proportional-Integral-Derivative) control algorithms are a basic control strategy used in feedback control systems. These algorithms use feedback data to enable the system to approach the desired target and maintain the desired state. The aim of this study is to observe the action of the pumps in pressure regulation in Heart Lung Machines, to understand the clinical need and then to determine the appropriate control mechanism. In order to obtain the desired response, PID controllers must be adjusted according to the system they control. This adjustment is carried out by determining the coefficients Kp, Ki and Kd in the most appropriate way according to the desired response.