Proof-of-concept of a minimalist pressure-controlled emergency ventilator for COVID-19.

This study concerns the proof-of-concept of a simple ventilator implementing the pressure-controlled continuous mandatory ventilation mode (PC-CMV) with settable breathing rates and expiration/inspiration time ratios, intended as a last resort to ventilate COVID-19 patients. The design tries to minimize the use of technical components and those used are common in industry, so its construction may be possible in times of logistical disruption or in areas with reduced access to technical materials and at a moderate cost. Most of the device can be manufactured by modest technical means.