affaritaliani.it/puglia/cor...
I'm sorry this is in Italian - I can't find anything in English and it is a very new report.
Dr Ranieri is a Consulting Professor and Head of Anaesthesiology and Intensive Medicine in Bologna and is very active in research. He and a colleague in Lombardy have developed a device which means a ventilator can be used for 2 patients at the same time. A company in Bologna have made it up and it has been tested successfully. If this is true, the number of ventilators in Italy - and the world - can be doubled within a very short time at a relatively moderate cost.