Texas Heart Institute
Texas Heart Institute: Heart Information Center: Cardioverter Defibrillator
One-page article answers questions about arrhythmias and the need for an implantable cardioverter defibrillator (ICD) including diagrams, how they work, and tips for living with one.
National Academy of Engineering
Health Technologies Timeline
Find a timeline of important medical inventions of the 20th century. Inventions include the first electrocardiograph, the first kidney dialysis machine, the first plastic contact lens, and the first artificial heart.
National Inventors Hall of Fame
National Inventors Hall of Fame: Langer: Mplantable Cardioverter Defibrillator
Read about Alois A. Langer, a member of "the medical team that invented the first automatic implantable cardioverter defibrillator." Also, learn how this invention impacts the medical world.