Highly isolated power supply energised by ultrasound.
D004554:Electric Countershock; D004556:Electric Injuries / Q000517:prevention & control*; D004562:Electrocardiography; D004582:Electronics, Medical; D006801:Humans; D008722:Methods; D008991:Monitoring, Physiologic; D014159:Transducers; D014465:Ultrasonics