Mercury sphygmomanometer

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The mercury sphygmomanometer is an instrument for determining arterial blood pressure indirectly by using a column of mercury to indicate the pressure[1].


The Austrian physician Samuel Siegfried Karl von Basch invented[2] the mercury sphygmomanometer in 1881 while experimenting with ways to make blood pressure measurement more convenient and accurate. Here is an animation that first depicts his manometer followed by his sphygmomanometer as a whole:

Here is a photograph[3] of a mercury sphygmomanometer with an inflatable cuff:


Here is a photograph[4] of Samuel Siegfried Karl von Basch: