Learning
Learning about the Design and Development of Active Implantable Medical Devices
The best books to learn about the design of active implantable medical devices are Design and Development of Medical Electronic Instrumentation (Chapters VII and VIII), Design of Cardiac Pacemakers by John G. Webster, Low Power Analog CMOS for Cardiac Pacemakers by my friend Fernando Silveira, Ultra Low Power Bioelectronics by Rahul Sarpeshkar, Biomedical Microsystems by Ellis Meng, and Implantable Cardioverter Defibrillator by Igor Singer. For the historical perspective, consider The Making of the Pacemaker by Wilson Greatbatch.