The stethoscope is the most commonly used diagnostic tool for internal and external gynecologists and pediatricians. It is a symbol of physicians. Modern medicine began with the invention of the stethoscope. Since the stethoscope was used in clinical practice, the shape and sound transmission methods have been continuously improved, but its basic structure has not changed much. It is mainly composed of the pickup part (chestpiece), the conductive part (hose) and the listening part (earpiece) .
