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From hardware store to hospital:a COVID-19-inspired,cost-effective,open-source,in vivo-validated ventilator for use in resource-scarce regions

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Bio-Design and Manufacturing 2022年第1期5卷 133-140页

作者： Matthew H.Park Yuanjia Zhu hanjay wang Nicholas ATran Jinsuh Jung Michael JPaulsen Annabel M.Imbrie‑Moore Samuel Baker Robert Wilkerson Mateo Marin‑Cuartas Danielle M.Mullis Y.Joseph Woo Department of Cardiothoracic Surgery Stanford UniversityFalk Cardiovascular Research Building CV-235300 Pasteur DriveStanfordCA 94305-5407USA Department of Mechanical Engineering Stanford UniversityStanfordCAUSA Department of Bioengineering Stanford UniversityStanfordCAUSA Department of Comparative Medicine Stanford UniversityStanfordCAUSA University Department of Cardiac Surgery Leipzig Heart CenterLeipzigGermany

Resource-scarce regions with serious COVID-19 outbreaks do not have enough ventilators to support critically ill patients,and these shortages are especially devastating in developing *** help alleviate this strain,we have designed and tested the accessible low-barrier in vivo-validated economical ventilator(ALIVE Vent),a COVID-19-inspired,cost-effective,open-source,in vivo-validated solution made from commercially available *** ALIVE Vent operates using compressed oxygen and air to drive inspiration,while two solenoid valves ensure one-way flow and precise cycle *** device was functionally tested and profiled using a variable resistance and compliance artificial lung and validated in anesthetized large *** functional test results revealed its effective operation under a wide variety of ventilation conditions defined by the American Association of Respiratory Care guidelines for ventilator *** large animal test showed that our ventilator performed similarly if not better than a standard ventilator in maintaining optimal ventilation *** FiO2,respiratory rate,inspiratory to expiratory time ratio,positive-end expiratory pressure,and peak inspiratory pressure were successfully maintained within normal,clinically validated ranges,and the animals were recovered without any *** regions with limited access to ventilators,the ALIVE Vent can help alleviate shortages,and we have ensured that all used materials are publicly *** this pandemic has elucidated enormous global inequalities in healthcare,innovative,cost-effective solutions aimed at reducing socio-economic barriers,such as the ALIVE Vent,can help enable access to prompt healthcare and life saving technology on a global scale and beyond COVID-19.

关键词： COVID-19 Ventilator Open-source

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