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Electronic sphygmomanometer, Saitama, Japan, 1977

A sphygmomanometer measures blood pressure. To do so, a rubber cuff was inflated above the elbow to block the pulse in the lower arm. In modern sphygmomanometers, the cuff is pumped up and the pulse listened to with a stethoscope until the sound disappears. The technique was described by N. S. Korotkov (1874-1920) in 1905. This instrument is the model J-108, mk II. It was made by the Japan Standard Corporation. With this device, the disappearance of the pulse is detected electronically and registered by an audible signal.

Object number:

1979-336 Pt1



Glossary: pulse

The throbbing of the arteries as blood flows through them. The pulse matches the rate at which the heart is beating.

Glossary: sphygmomanometer

An instrument used by medical staff to measure blood pressure. Usually made up of a cuff which is placed around the arm of a patient, and a measuring unit that shows the patient's blood pressure.