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Since the beginning of 2020, the entire world has been affected by Covid-19, which has caused millions of infections and deaths, with older adults being the most affected population. Like many other countries in the world, Ecuador has shown a deficit of supplies to face this threat. Within this context, this article shows a pressure-cycled artificial ventilator alternative constructed with 3D printing material. The procedure includes a structural analysis simulation, the topology optimization of the mechanical structure and the implementation of air pressure control in the artificial lung bag. The results of this research shows that the proposed structural design for the artificial ventilator allows reducing the amount of construction material and therefore the manufacturing time, without affecting the effectiveness of its performance. In addition, analysis of the control system responses evidences that a classical PID controller allows the correct performance of the ventilator pressure control.