Diseño de una válvula para aplicaciones clínicas basada en multi-criterio de ingeniería concurrente.

Abstract

This research focuses on implementing a preliminary analysis to design and create a prototype pinch valve for handling sensitive biological fluids, such as blood and cannabidiol (CBD) oil commonly used in epilepsy treatment. Initially, a study of the current state of knowledge was conducted to gather key information supporting the design, covering operational principles, among other aspects. In the second step, the methodology to determine technical specifications through Quality Function Deployment (QFD) analysis was described. Functional and modular structural analyses were performed, generating solutions for each module and planning implementation alternatives. The choice of the best solution was based on a weighted criteria study for alternative selection. In the third step, calculations and finite element simulations were conducted to establish minimum specifications for the parts of the selected alternative. Additionally, a static structural study was carried out to assess possible failures or ruptures in each component, considering the sensitivity of the treated fluids. The final phase included detailed design development, encompassing assembly drawings and workshops, along with the construction of the prototype using additive manufacturing. A description of the methodology to obtain the prototype, including the 3D printer setup and software, is provided. This comprehensive approach aims to significantly contribute to the study and development of devices for handling biological fluids, especially those of a sensitive nature, through the control of pinch valves.