105736An innovative, first-of-class medical device for the diagnosis of cardiac arrest which, coupled with complimentary training, could improve survival from out-of-hospital cardiac arrest from 8% to 47%.ClosedStudyInnovate UKLuma West (Luma) is a rapidly growing medtech start-up. Founded by two brothers, a doctor and an electronic engineer, Luma is solving an unaddressed, substantial public health need affecting seven million people annually: reliable diagnosis of cardiac arrest. Additionally, Luma will provide free CPR teaching to every purchaser and free first-aid training for multiple purchases at a comparable price to the training alone. This package of device and training, if widely disseminated publicly, could save 16,000 lives annually in the UK and 3m lives globally - increasing cardiac arrest survival out-of-hospital from 8% to 47%.