Figure 2

Stethoscope - Over 200 years

Henrik Permin* and Svend Norn

Published: 18 January, 2019 | Volume 3 - Issue 1 | Pages: 001-008

jprr-aid1010-g002

Figure 2:

Laënnecs monaural stethoscope from his 1st edition of the book on auscultation [7] from 1819. Two boxwood tubes are screwed together into a 30 cm long tube. The funnel-shaped hollow end is closed with the obturator to render the heart sounds clearer. To the right is a section of the lung. (Wellcome Library, London).

Read Full Article HTML DOI: 10.29328/journal.jprr.1001010 Cite this Article Read Full Article PDF

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