UnitedHealth Group Inc. /zigman2/quotes/210453738/composite UNH +1.07% , Boston Scientific Corp. /zigman2/quotes/203726728/composite BSX -1.10% , Medtronic Plc. /zigman2/quotes/206816578/composite MDT -1.72% and the University of Minnesota are working together to distribute 3,000 of what they called "light" ventilators, newly invented to address the lack of enough ventilators amid the coronavirus pandemic, the companies said Thursday. The first 500 devices are ready to ship this week, UnitedHealth said. UnitedHealth, Medtronic and the University of Minnesota are determining where the product is most needed, and Boston Scientific is manufacturing and shipping the device. The "light" ventilator is an idea by the the University of Minnesota Medical School, the companies said. The alternative device uses an electrically powered robotic arm to mechanically squeeze an off-the-shelf adult resuscitation bag, the sort paramedics often use to help a patient breathe, the companies said. The devices will be shipped where ventilators are urgently needed and any remaining devices will be donated to the U.S. Strategic National Stockpile.