March 24, 2018

This photo has been previously mislabeled as being a photo of Samuel Von Basch, but as Von Basch was born in 1837 and the device on the photo dates from 1898, it is definitely not Von Basch, but rather Riva-Rocci himself demonstrating the use of his new sphygmomanomete...

March 18, 2018

In 1881 the English physician and homeopath, Robert Ellis Dudgeon introduced a new, highly portable Sphygmograph. Dudgeon’s Sphygmograph was strapped to the wrist. The pulse at the wrist caused a metal strip to move a stylus, transmitting a record of the pulse onto smo...

March 12, 2018

The Marey Sphygmograph became the first instrument of its kind to be widely used in clinical medicine. Dr Marey, a French scientist and physiologist working in Paris, contributed significantly to cardiology and physical instrumentation, and was a pioneer in photograph...

February 11, 2018

In 1855, Karl Vierordt invented the sphygmograph, the ancestor of the blood pressure device and first of many devices that estimated blood pressure indirectly.

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