Diseño de un dispositivo médico de asistencia respiratoria no invasiva en humanos para el tratamiento de afecciones causadas por la Covid 19

Abstract

The Covid-19 pandemic has had a significant impact on the healthcare system worldwide, resulting in a high number of mortalities due to the lack of adequate resources to treat this disease. Although the pandemic has been considered to be over, many people have been left with sequelae and respiratory ailments following COVID- 19, which include pneumonia, chronic lung disease, pulmonary thromboembolism, among others. In order to improve the original device, a prototype has been developed based on the UCL Ventura CPAP model, designed in London. To achieve this, the internal geometry of the device was obtained and various simulations were carried out using specialized CFD analysis software, as well as corresponding functional tests. As a result, the original UCL Ventura device has been optimized, reducing its weight by 45 percent and obtaining a maximum value of 96.3 percent oxygen concentration at the outlet. As for the construction of the prototype, it was made by 3D printing with liquid resin model Tough 2000 used in engineering applications for its excellent physical and mechanical properties. The idea of creating the prototype in 3D printing is due to the ease of making different changes in the model and thus determine an optimal design that meets the respiratory requirements of the patient, however, due to the chemical components of the resin with which the prototype was printed, a medical grade resin should be used for the construction and use in patients with respiratory problems.