3M Littman Stethoscope – A Boon in disguise
It was about 180 years ago in the year 1819 when the French physician Rene Laennec developed the first wooden stethoscope which had a large diameter base and it had to be placed on the chest. The sound was funneled through a smaller opening into the ear of the physician.
It was about 180 years ago in the year 1819 when the French physician Rene Laennec developed the first wooden stethoscope which had a large diameter base and it had to be placed on the chest. The sound was funneled through a smaller opening into the ear of the physician. However it was a one-eared stethoscope. Some noteworthy innovations in this field are that of the stethoscopes that carry a large side of the diaphragm and a small side diaphragm. The large side of the diaphragm is for adults and the small side is specially designed for sound with pediatric patients. This makes it a truly multipurpose tool for the doctor, cardiologist and nurse.
However, the stethoscope industry was revolutionized by a German cardiologist Dr. David Littmann. He was a professor and researcher at Harvard Medical School. He patented the well known
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