Bloch sphygmomanometer for blood pressure by Verdin, circa 1890
€460
Circa
1890
Country of manufacture
France
Description
The first sphygmomanometer was devised by Samuel Von Basch (1837-1905) in 1881. It measured blood pressure by slowly applying a measured force to the skin over an artery until the pulse disappeared.
This variation was devised by A. M. Bloch. It uses a spring to record the weight necessary to obliterate the pulse. The device was made in Paris by scientific instrument maker Charles Verdin.
A very fine and complete example preserved in its original case : 15,5cm lenght.
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Dealer information
Le Zograscope
Established by Alexandre Piffault in 2014 and based in Paris at 5 rue de Condé, 75006, very close to Odéon, Le Zograscope specializes in antique and rare books in Science, Medicine and Technology, and rare antique instruments in the same fields. We have especially a strong interest in early and continental microscopy, early and special mathematical/drawing instruments, medical and surgical instrument, and rare technology.
Personnal website : https://www.lezograscope.com/
