"Karl von Vierordt (July 1, 1818 – November 22, 1884) was a German physiologist.
Vierordt was born in Lahr, Baden. He studied at the universities of Berlin, ...
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Göttingen, Vienna, and Heidelberg, and began a practice in Karlsruhe in 1842. In 1849 he became a professor of theoretical medicine at the University of Tübingen, and in 1853 a professor of physiology.
Vierordt developed techniques and tools for the monitoring of blood circulation. He is credited with the construction of an early "hemotachometer", an apparatus for monitoring the velocity of blood flow. In 1854, he created a device called a sphygmograph, a mechanism consisting of weights and levers used to estimate blood pressure, and considered to be a forerunner of the modern sphygmomanometer. One of his better known written works was a treatise on the arterial pulse, titled Die Lehre vom Arterienpuls in gesunden und kranken Zuständen." - (en.wikipedia.org 27.03.2024)
