Question

what is sphyganomanometer​

Answer 1

first of all it is sphygmomanometer

sphygmomanometer : It is an instrument for measuring blood pressure, typically consisting of an inflatable rubber cuff which is applied to the arm and connected to a column of mercury next to a graduated scale, enabling the determination of systolic and diastolic blood pressure by increasing and gradually releasing the pressure in the cuff.

Answer 2

Sphygmomanometer is measuring instrument use for checking BP ( BLOOD PRESSURE ) which contains inflated rubber cuff which is applied to arms constructed mercury on graduate scale , enabling the determination of systolic or asystolic in blood pressure that basically resising in cuff.

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Additional

It invented by Samuel Siegfried Karl Ritter Van Bascb.