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6 Remarkable Medical Gadgets

Mental_Floss has compiled a list of six remarkable medical gadgets and how they were invented.

As a young medical-school student in 19th-century Paris, Rene Theophile Hyacinthe Laennec developed a knack for hearing and interpreting the different sounds made by the heart and lungs when he placed his ear on patients’ chests. This method only worked if the patient was sufficiently slender, of course. One afternoon, Laennec saw some children playing with wooden boards. One tyke would scratch or tap softly on one end, while another put his ear on the other end of the board to hear the sound. Laennec went back to his office – presumably after removing a splinter from the tyke’s ear – and constructed a long tube out of several pieces of rolled-up paper. By placing the end of the cylinder directly on a patient’s chest or back, he discovered that he could hear sounds much more clearly than before. After experimenting with different materials and designs, he came up with the stethoscope. In 1819, the medical community began to recognize the use of the gadget as a valuable diagnostic tool.

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