Diseño de un sistema dinámico para caracterización de materiales biodegradables

Bioabsorbable biomaterials are specially designed to have a dynamic interaction with the tissue they support or replace. Static in vitro tests are insufficient to describe the behavior of the material prior to in vivo characterization. Then, a dynamic characterization system that simultaneously considers fluid stimulus, external forces and electrochemical reactions is required. Here, the authors propose a system that unifies the different tests and mechanical stimuli for the characterization of biodegradable porous materials. In the present report, the design process following the Pahl & Beitz methodology is shown. Briefly, the main demands and wishes were established as follows: the system must host and fix the scaffold, the physiological fluid must constantly circulate through the specimen, the specimen and fluid must be available for rescue and visibility must be guaranteed. The system also allows in-situ mechanical compression testing. The final design was represented considering the best pondered alternatives.