Sphygmomanometer (blood pressure apparatus), late 19th century.
Image number: 10289192
The sphygmonanometer measures blood pressure. This example, a type invented by Samuel von Basch, has an aneroid barometer dial showing changes in blood pressure, unlike the modern ones which have a cuff and U tube. To take the maximum blood pressure, it has a pelotte, or bulb which was pressed onto the radial artery in the arm, until the pulse disappeared.
- Image number:
- Science Museum/Science & Society Picture Library
- Date taken:
- 20 October 2003 12:47
- Image rights:
- Science Museum