"the Cylinder": the first stethoscope

Problem
"In 1816, I was consulted by a young woman labouring under general symptoms of diseased heart, and in whose case percussion and the application of the hand were of little avail on the account of the great degree of fatness..."

Summary
"...I rolled a quire of paper (24 sheets) into a kind of cylinder and applied one end of it to the region of the heart and the other to my ear..." -Rene Laennec, 1816

Developers
Rene Laennec

Website
www.antiquemed.com

References
Agnew R. The prelude to stethoscopy: some French, British and Irish contributions in the early nineteenth century. J Med Biogr. 2003 Aug;11(3):135-41.

Merino JG. [Laennec and the creation of auscultation signs] Gac Med Mex. 2003 Mar-Apr;139(2):165-8.

For kids: Hear Your Heart by Paul Showers