Pressure-controlled ventilator from the 3d printer

In the fight against the Coronavirus pandemic, HAGE Special Purpose Machines and HAGE3D are developing a pressure-controlled ventilator in close collaboration with the Medical University of Graz. Initial versions based on a bag valve mask and a pneumatic cylinder have been developed, printed and tested by the director DI Peter Freigassner. With the help of the HAGE3D team, a functional, supervised machine was finally created. The requirements and construction were refined across several iterations in close collaboration with experts from the Medical University of Graz. The pressure of the oxygen supply is thereby regulated by a valve system close to the patient in the ventilation tube and controlled by sensors. The transmitted values are displayed graphically on the touch display. A visual and acoustic warning system gives an alert if there is a deviation from the defined ideal values. In order to observe hygiene requirements, many components are made of medical disposable materials and are exchanged or cleaned before each patient. Components that do not come into contact with the patient are cleaned via hygienic surface disinfecting.