Inventions

• C. 1280, spectacles
• 1540, artificial limb, by Ambroise Pare
• 1630, obstetric forceps, by Peter Chamberlen
• 1714, mercury thermometer, by Gabriel Fahrenheit
• 1775, bifocal lenses, by Benjamin Franklin
• 1792, ambulance, by Dominique Jean Larrey
• 1796, vaccination, by Edward Jenner
• 1816, stethoscope, by René Laennec
• 1817, dental plate, by Anthony Plantson
• 1853, hypodermic syringe, by Alexander Wood
• 1887, contact lens, by Adolf Fick
• 1895, X-ray, by Wilhelm Röntgen
• 1903, electrocardiograph, by Willem Einthoven
• 1956, endoscope, by Basil Hirschowitz
• 1957, artificial pacemaker, by C. Walton Lillehei and Earl Bakken
• 1958, ultrasound scan, by Ian Donald
• 1973, CT (CAT) scan, by Godfrey Hounsfield and Allan Cormack
• 1982, artificial heart, by Robert Jarvik