Dr. David Littman, a famous cardiologist, inventor, and Harvard Medical School professor, greatly improved the acoustic qualities of stethoscopes in 1963. He believed it was vital to have a stethoscope with two chestpieces, an open ...

Stethoscopes are one of the most commonly used tools in the medical profession. Nearly every doctor, nurse, paramedic, and veterinarian uses a stethoscope throughout the course of a normal workday. Some doctors or hospitals choose ...