It's a miracle, changing mercury into water...
The wonderful thing about having a complete historic collection of blood pressure devices spanning four centuries is that you realize that t
Technology was expensive at the turn of the century
The 1914 Portable Sphygmomanometer, designed by Percival Nicholson, is an absolutely stunning example of American scientific ingenuity and w
How branding can affect the future of health...
So who really invented the blood pressure monitors, Riva Rocci, Spengler, the Germans, the Americans?
Discovering the missing link in blood pressure
In 1855, Karl Vierordt invented the sphygmograph, the ancestor of the blood pressure device and first of many devices that estimated blood p
