MIT-based team works on rapid deployment of open-source, low-cost ventilator: Clinical and design considerations will be published online; goal is to support rapid scale-up of device production to alleviate hospital shortages.

http://news.mit.edu/2020/ventilator-covid-deployment-open-source-low-cost-0326

The new device fits around an Ambu bag (blue), which hospitals already have on hand in abundance. Designed to be squeezed by hand, instead they are squeezed by mechanical paddles (center) driven by a small motor. This directs air through a tube which is placed in the patient's airway.

60만원대 초저가 인공호흡기, ‘코로나 대란’ 숨통 틔울까

원문보기:
http://news.khan.co.kr/kh_news/khan_art_view.html?artid=202004052139015&code=610100#csidx95c2d85819b760c8ff536245299461d 

Design and Prototyping of a Low-cost Portable Mechanical Ventilator https://web.mit.edu/2.75/projects/DMD_2010_Al_Husseini.pdf