Caracterização mecânica de um design de swab nasofaríngeo fabricado por manufatura aditiva, utilizando o processo Multijet Print (MJP).

Abstract

The present dissertation addresses the mechanical characterization of a nasal swab design manufactured through additive manufacturing using the MultiJet Print (MJP) process. The design of the nasal swab was modeled in Computer Aided Design (CAD) based on academic research, highlighting a device with optimal performance in mucus collection and a good balance between flexibility and mechanical strength. The chosen designs were printed by the CONNEX350 using the MultiJet Print process, employing specific parameters. Mechanical tests of traction and flexion were conducted using the Instron 3366 Universal Testing Machine, demonstrating the resistance and behavior of the swabs when subjected to loads during their use. Additionally, for torsion tests, an experimental setup was developed. At the end of the characterization tests, the results were compared with some commercially available swab models already mechanically tested, providing a more accurate understanding of the device's performance compared to existing ones, highlighting the feasibility of additive manufacturing in this context.