Who created the first stethoscope?

The first stethoscope was created by the Ren Theophile-Hyacinthe Laennec in 1816. The doctor at the Malades Hospital in Paris in Paris was inspired by Laennec when he watched children playing with hollow sticks. He noted how the sound was reinforced when scraping one end of the wand while listening to at the other end. At that time, doctors would cover the handkerchief on the patient's chest to avoid direct contact while listening to their heart and lungs. Laennec went one step further by rolling several sheets of paper as a listening device and a stethoscope.

doctors listened to the hearts and lungs of patients by laying their ears on their chest, since the hippocrats (460 BC - 370 BC). The first stethoscope Laennecho gave the medical field a powerful new tool. Soon he continued to design the first prototype of today's sophisticated electronic stethoscopes. It was a cylindrical wooden tube composed of three sections and was monaural or with one channel.

Laennec first called his invention "" Le Cylindre "because of the capeLel that the invention is too basic to deserve the real name of the name. In the end, he decided that the "stethoscope" would be enough. The word "stethoscope" is derived from the Greek terms for "chest" and "research". Laennec's dexterity as a timber was helpful to create the first stethoscope.

Over the years, several doctors have further refined the first stethoscope Laennec. George Cammann designed the first binural stethoscope in 1852. This version was double channels or with two pieces of ears and made of spiral tubes laid silk and bathing in elastic rubber. David Littman, professor of the Faculty of Medicine Harvard, improved design at the age of 60. Within 90.

Although Rene Laennec invented and created a stethoscope that was usedIT for the diagnosis and study of diseases such as tuberculosis, in fact in 1826 succumbed to the same disease. His invention revolutionized medical diagnosis. The modern stethoscope is able to listen to the smallest echo from the heart, the intestines and the smallest flow of blood in the veins. Laennec's Creation, now worn around the neck of virtually every doctor around the world, has become a standard symbol for a medical profession.