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File:Dudgeon sphygmograph, Edinburgh, Scotland, c. 1885-1900 Wellcome L0064887.jpg

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Dudgeon sphygmograph, Edinburgh, Scotland, c. 1885-1900
Title
Dudgeon sphygmograph, Edinburgh, Scotland, c. 1885-1900
Description

Force, rate and variations in the pulse were recorded using a sphygmograph. The first practical version was devised in 1860 by French physician Etienne-Jules Marey (1830-1904). English physician and homeopath Robert Ellis Dudgeon (1820-1904) introduced this new, highly portable sphygmograph in 1881. It was strapped to the wrist. The pulse at the wrist caused a metal strip to move a stylus. This transmitted a record of the pulse onto smoked paper. It created a record of blood pressure and pulse over time.

Dudgeon’s instrument quickly became popular because it was compact and easy to use. This example was owned and used by Scottish physician Sir James Mackenzie (1853-1925). Mackenzie was a leading cardiologist who developed many of his own instruments.

maker: J. Gardner and Son

Place made: Edinburgh, Edinburgh, Scotland, United Kingdom

Medical Photographic Library
Keywords: sphygmograph; Cardiology
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This file comes from Wellcome Images, a website operated by Wellcome Trust, a global charitable foundation based in the United Kingdom. Refer to Wellcome blog post (archive).
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References
  • Library reference: Science Museum A56269
  • Photo number: L0064887
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https://wellcomeimages.org/indexplus/obf_images/b5/75/e83eb9d06f0d7978bcc27163e0e8.jpg

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