Spyghmograph by verdin, 1890
On application
A sphygmographe made by charles verdin in the late 19th century. A mechanism by dudgeon which recorded the pulse pressure and rhythm at the wrist. A sensitive manometer sits on the radial pulse and is amplified by means of a weighted pulley. A clockwork mechanism turns a roller which winds recording paper under the needle to record a trace.
Related products
2 stokes stethoscopes c 1860
On applicationSmelling salts flacon,c 1860
On applicationSphygmograph by ch. Les verdin a paris
On application