Pace Maker

The pacemaker is a battery operated implanted devices that stimulates the hear to beat at a normal rythm https://www.nhlbi.nih.gov/health-topics/pacemakers . Historically the main unit is implanted under the clavicle and a lead is placed through the vena cava and anchored in the heart muscle. IN 2019 Medtronic was the first to bring an FDA approved lead-less pacemeaker onto the market. https://www.acc.org/latest-in-cardiology/ten-points-to-remember/2019/06/10/13/49/the-leadless-pacemaker Multicenter studies were published in 2015 https://www.nejm.org/doi/pdf/10.1056/NEJMoa1507192