René-Théophile-Hyacinthe Laennec (; 17 February 1781 – 13 August 1826) was a French physician and musician.
However, in 1799 he returned to study.
In 1804, while still a medical student, he was the first person to lecture on melanoma.
This lecture was subsequently published in 1805.
His skill of carving his own wooden flutes led him to invent the stethoscope in 1816, while working at the Hôpital Necker.
Corvisart advocated the re-introduction of percussion during the French Revolution. ==Invention of the stethoscope== René Laennec wrote the classic treatise De l'Auscultation Médiate, In 1816, He was consulted by a young woman laboring under general symptoms of diseased heart, and in whose case percussion and the application of the hand were of little avail on account of the great degree of fatness.
Laënnec presented his findings and research on the stethoscope to the Academy of Sciences in Paris, and in 1819 he published his masterpiece, De l’auscultation médiate ou Traité du Diagnostic des Maladies des Poumon et du Coeur, 8 in two volumes. Laennec coined the phrase mediate auscultation (indirect listening), as opposed to the popular practice at the time of directly placing the ear on the chest (immediate auscultation).
Chaude, 1819. Image:Rene-Theophile-Hyacinthe Laennec (1781-1826) Drawings stethoscope and lungs.jpg | De l’auscultation médiate....
He named his instrument the stethoscope, from the Greek words στήθος[stethos] (chest), and σκοπός[skopos] (examination). The stethoscope quickly gained popularity as De l'Auscultation Médiate was translated and distributed across France, England, Italy and Germany in the early 1820s.
Although the New England Journal of Medicine reported the invention of the stethoscope two years later in 1821, as late as 1885, a professor of medicine stated, "He that hath ears to hear, let him use his ears and not a stethoscope." Even the founder of the American Heart Association, L.
He pioneered its usage in diagnosing various chest conditions. He became a lecturer at the Collège de France in 1822 and professor of medicine in 1823.
He pioneered its usage in diagnosing various chest conditions. He became a lecturer at the Collège de France in 1822 and professor of medicine in 1823.
René-Théophile-Hyacinthe Laennec (; 17 February 1781 – 13 August 1826) was a French physician and musician.
He died of tuberculosis in 1826 at the age of 45. ==Early life== Laennec was born in Quimper (Brittany).
Connor (1866–1950) carried a silk handkerchief with him to place on the wall of the chest for ear auscultation. Laennec often referred to the stethoscope as "the cylinder," and as he neared death only a few years later, he bequeathed his own stethoscope to his nephew, referring to it as "the greatest legacy of my life." The modern binaural stethoscope with two earpieces was invented in 1851 by Arthur Leared of Ireland.
George Cammann perfected the design of the instrument for commercial production in 1852, which has become the standard ever since. ==Other medical contributions== He developed the understanding of peritonitis and cirrhosis.
Although the New England Journal of Medicine reported the invention of the stethoscope two years later in 1821, as late as 1885, a professor of medicine stated, "He that hath ears to hear, let him use his ears and not a stethoscope." Even the founder of the American Heart Association, L.
(1912) Laennec Paris: Baillière 1912, 1920 1781 births 1826 deaths People from Quimper French inventors 19th-century French physicians 19th-century deaths from tuberculosis French Roman Catholics French pulmonologists Tuberculosis deaths in France
(1912) Laennec Paris: Baillière 1912, 1920 1781 births 1826 deaths People from Quimper French inventors 19th-century French physicians 19th-century deaths from tuberculosis French Roman Catholics French pulmonologists Tuberculosis deaths in France
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