Modified Dudgeon sphygmograph, circa 1890

Modified Dudgeon sphygmograph, circa 1890

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Caption: Modification of the Dudgeon sphygmograph with tambour in its case, dating from around 1890, England. This instrument is made out of nickel and has a clockwork mechanism. The sphygmograph, originally invented in 1854 by German physiologist Karl von Vierordt, was used by physicians in the nineteenth century as a means of observing and measuring the pulse externally and non-invasively. A clockwork mechanism allows the pulse wave forms to be traced with a mounted pen.

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Keywords: 1800s, 1890, 1890s, 19th century, antique, apparatus, blood pressure, blue background, cardiovascular, clinical, clockwork, clockwork mechanism, device, devices, dudgeon, dudgeons, england, english, equipment, health, healthcare, historical, history, instrument, instruments, karl von vierordt, measure, measurement, measures, measuring, mechanical, medical, medical instrument collection, medicine, nineteenth century, pulse, pulse-writer, radial, sphygmometry, tambour, tambours, tracer, traces, wrist

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