http://panvent.blogspot.com/

Here is the Abstract: The number of ventilators required to save the lives of people stricken with respiratory failure in a pandemic is far greater than the number of ventilators available. Many people will die needlessly unless something is done. Ventilators are expensive to buy and maintain, so government organizations are stockpiling only a minimal reserve. Manual type ventilators will not be adequate for many cases. We need an organization to develop a design for an automated ventilator that will be adequate and can be built from parts that will be available in sufficient quantities during a pandemic. This organization will design, and test a freely available open source ventilator design, that individuals and healthcare organizations can build themselves in a pandemic crisis.