Center researchers develop a new mechanical fan that works without the need for a critical bed


A functional prototype of a mechanical fan, whose main characteristic is that it works without the need for a critical bed, are being developed by a group of students and academics from the School of Civil Biomedical Engineering of the University of Valparaíso, together with engineers from the USM, which next week will undergo an inspection in the Certemed laboratory.

Alejandro Weinstein, academic and researcher in UV Biomedical Engineering and main promoter of the prototype through the MENT EVENT reference design, points out that “the emergency fan works by operating a manual mechanical fan: a circuit allows the drive to be controlled in such a way to be able to monitor the different parameters of ventilation ”.

The academic also advised the team “on the selection of parts, type of sensors and motors, along with some more strategic aspects, regarding the steps to follow with the development. We start by defining the specifications and the adaptation of some parts to what we had locally ”.

Meanwhile, Darío Ahumada, sixth year student of UV Biomedical Engineering and member of the developer team explains that his role is “to provide biomedical knowledge, from a clinical point of view, with the minimum requirements that the ventilator must meet to be a vital support in this pandemic and not cause harm to the patient ”.

The student adds that “the emergency life support respirator is a device designed in its first stage as non-invasive, to support ventilation of the patient with respiratory failure in a non-critical state due to the new COVID-19. However, after some modifications we are working on regarding patient safety, it may be used, at the discretion of healthcare personnel, as an invasive respirator. ”

“The equipment is designed based on a manual resuscitation balloon (Ambu) that by means of potentiometers and a series of sensors, can control the maximum inspiratory pressure (PIP), volume, inspiration / expiration ratio (I / E) and breaths per minute (BPM). The Ambu is pressed through 3D printed mechanical levers; the tightening of these controls the volume that enters the patient. The equipment has multiple audible and visual alarms; in addition to security protocols in case of emergency. The fan was developed following the minimum requirements provided by SOCHIMI ”, she adds.

The student assures that they hope to “contribute with two invasive and two non-invasive ventilators. The team was developed to support any adult who has respiratory problems due to the virus, therefore, for people who, due to their age characteristics, cannot opt ​​for a mechanical ventilator, this team can help them ”.

Regarding the opportunity to participate in development, Darío Ahumada points out that “it is a first approach to contribute as a Biomedical Engineer in a society that lacks them and that the contribution they make constantly and silently in all hospitals, centers of health and health technology companies in Chile and the world. As a student it is an opportunity to grow in technical and scientific knowledge ”.


Minister Couve highlights the work of Certemed UV in inspecting new mechanical fans

The Minister of Science and Technology, Andrés Couve, appreciated the work carried out by the Certemed UV laboratory in the inspection of mechanical ventilators for emergencies (VM-E) as part of the work carried out by the electromedical devices safety inspection body doctors created at the School of Biomedical Civil Engineering of the University of Valparaíso. … Continue reading Minister Couve highlights the work of Certemed UV in inspecting new mechanical fans

Predictive model created that will allow doctors to estimate probability of Covid-19 infections

The creation of a predictive model that allows physicians to estimate the probability of Covid-19 from the integration of demographic, epidemiological, clinical, social and environmental data that are within the Epivigila system used by the Ministry of Health for surveillance of Communicable diseases is the objective of the project awarded by the academic Carla Taramasco, … Continue reading Predictive model created that will allow doctors to estimate probability of Covid-19 infections


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