MoHMA.org

Category: Sphygmomanometer
Estimated Date: 1920
Name: Dr. G. Casal Tensionometer
Manufacturer: IMP, Vichy,France

Description: 2.5“d x 3/4” deep dial calibrated in CM of mercury. 0-30. The face reads the mnfr, inventor and has a winged symbol at the bottom am in a circle. A foot screws into the top that is 1 3/4” in diameter. This consists of a rubber footing that probably was a bulb but is hardened and flat. There is a rod inside that connects through a metal fitting with a rod in the dial and must have moved the needle when the bulb was pressed against the pulse. There is a strap to secure the device to the wrist in the style of the period. A hinged bracet on the back must have been used to hang it on something but the spring is missing. A very curious device because when secured on the wrist over the radial artery the scale would be upside down.

Sphygmomanometer nach Dr. H. Von Recklinghausen
Sphygmomanometer, Baum
Dr. G. Casal Tensionometer
Sphygmomanometer, Martins
Sphygmomanometer, Tycos