Desarrollo de un simulador de electrocardiografía con propósito académico

Abstract

This work presents the design and implementation of an electrocardiography simulator for academic use. For this purpose, was followed a methodology for the design of biomedical devices. During this process, the needs of the students during the bioinstrumentation courses and the aspects to be improved for the physiological variable simulation devices available in the laboratory were taken into account. The main problem was identified and based on this information the development of the simulator was carried out along with its innovative features. For the implementation of the device, the mathematical model and representation of the electrical signal of the heart of each of its leads were made using Fourier series. The signal adaptation circuit was designed and implemented to be simulated for emulating the twelve leads simultaneously. The operation of the simulator was validated and the maximum uncertainty of the simulated heart rate was calculated, which was four beats per minute (bpm). Finally, the device was evaluated at the academic level by conducting a workshop with students of bioinstrumentation and related courses, obtaining an excellent reception by them. These students understood with greater ease the concepts seen in electrocardiography during the laboratory practice and interacted with the different functions of the simulator relating the important parameters of the cardiac signal acquisition technique.