Vývoj demonstračního modelu hemodynamiky krve

Abstract

This bachelor’s thesis focuses on the development of a demonstration model of the human heart designed to illustrate cardiac function and blood hemodynamics. The primary objective was to create a system capable of simulating blood ejection into the aorta based on either measured or manually set heart rate, thereby contributing to a better understanding of cardiac output and blood loss dynamics. The model allows interactive control—either through real-time heart rate detection using a PPG sensor or via manual input through a web interface. The system integrates a pulsatile pump to mimic heart contractions, an ESP32 microcontroller for control and communication, a PWM module for pump regulation, and a MAX30102 sensor for heart rate measurement. A web application was also developed to provide intuitive system control and real-time data visualization. The model is powered by a single source, with all electronic components enclosed in a water-resistant housing. The final product is a functional and portable heart model suitable for educational demonstrations, interactive presentations, and testing responses to varying heart rates or blood pressure levels.