ABSTRACT
The Covid-19 global pandemic has represented a challenge for education, which had to migrate to virtual environments. Universities adopted different teaching methods to keep contributing to the growth of the professionals in various fields. In this context, the Biomedical Engineering program of the Pontificia Universidad Catolica del Peru and the Universidad Peruana Cayetano Heredia had to change or adapt the methodology of the courses included in its curriculum in order to reach the learning objectives. This paper presents a methodology for an innovative approach of simulated scenarios using digital tools for the virtual teaching of Clinical Engineering. The learning results achieved in two semesters of implementation of the methodology, during 2020 and 2021, were measured by means of a survey applied to the students at the end of the course. Obtaining achievement results above 76 % and improvement opportunities that would be useful for the next version of this course and for the replication of the methodology in other universities. © 2023 IEEE.
ABSTRACT
Cardiovascular disease (CVD) is a broad term used to refer to heart diseases and blood vessels. According to the World Health Organization (WHO), the number of deaths from heart diseases between the years 2000-2019 has ranged between 2 million and almost 9 million people. After analyzing the need to implement and validate a monitoring system for the PUCP health center, we chose the FL10 device. This device has passed the design specifications under the following standards: IEC 60601-1:2005, IEC 60601-1-2:2014 and ISO 60601-2-47:2012, therefore it meets the safety, sensitivity and efficacy parameters but its design does not favor maintenance and periodic quality evaluations with commercial measurement equipment. An adapter was made by implementing digital manufacturing by 3D design using Inventor professional 2021 software with the educational license granted by the university. The electrical safety test showed that the leakage current value of all the electrodes was 0.3 uA which is less than the standard (0.1 mA) and the efficacy test showed that all measurements were acceptable. In the case of reproducibility and repeatability tests, the measurements were acceptable as well;in the value of 180 bpm, we observe an attenuation (179 bpm), however it is within the margin of error of 1 bpm. In summary, the FL 10 device is electrical safety and efficient in a health center in Peru. © 2022 IEEE.
ABSTRACT
The expanded use of the Masi ventilators to more regions of Peru is important, particularly for regions located at high altitudes, due to the ventilatory support latent need, which also represents a challenge in the calibration and the adjustment of metrological parameters to ensure its correct performance. In a previous study, in Puno city at 3800 m.a.s.l., it was found an error above 15.0% (minimum tolerance) in the tidal volume, for which a negative correction of 25.0% was applied. In the present study, a Masi ventilator was transported to Chachapoyas city, at an altitude of 2400 m.a.s.l. to continue evaluating the effect of altitude on the parameters of the device. Once there, ventilators were acclimated and calibrated. Tidal volume, inspiration-expiration ratio (LE), positive endexpiratory pressure (PEEP), peak inspiratory flow (PIF) and peak inspiratory pressure (PIP) were tested, and the maximum percentages errors presented were 13.5% and 13.9% in the tidal volume and the PIF, respectively. For that reason, although errors were under 15.0%, an update of the software of Masi was needed, applying a negative correction of 14.0%. Then, the parameters were tested again obtaining results with errors below 6.0% and 8.0% in volume controlled an pressure controlled ventilation modes, respectively. These results allowed the use of the Masi ventilator at ICU area. Finally, a software update for the Masi ventilator is performed by applying a linear equation that relates altitudes and percentage errors tested.