Design and implementation of a control system in an autoclave as an educational tool for biomedical engineering students

Abstract

This study focused on the design and implementation of an automated control system for a Pelton & Crane model MC autoclave, with the aim of transforming it into a modern and didactic tool for Biomedical Engineering students. The equipment was structurally redesigned, and sensors, actuators, and a graphical user interface were integrated to illustrate the internal operation of the sterilizer in real time. The educational strategy was structured into four sequential stages: (1) identification of components and maintenance practices, (2) animated visualization of the sterilization cycle, (3) demonstration of the water treatment system, and (4) diagnosis of common faults. To validate the academic impact, knowledge surveys were applied before and after the practical experience. The results showed a significant improvement in students’ understanding of sterilization principles and autoclave maintenance. The modified device achieved standard sterilization conditions (121 °C, 205 kPa), and its educational use led to a 94% increase in average student performance on evaluations. Overall, the educational autoclave proved to be an effective tool for reinforcing hands-on learning and enhancing the training of future biomedical engineers.