PH-PROBE Russian patent published in 1996 - IPC

FIELD: medical equipment, intended for determination of concentration of hydrogen ions (pH) in biological media. SUBSTANCE: the pH-probe uses antimony electrodes in the form of rings rigidly secured on thin-walled sleeves, hose pulled on the sleeves, silver-chloride comparison electrode positioned in a non-metallic casing consisting of a base and cap with a hole, and conductors passing inside the hose and coupling the electrodes to a connector. The casing of the silver- chloride electrode has one more cap with a hole connected in succession to the first cap through a flexible tube pulled on the caps. The spaces of the second cap and flexible tube are filled with non-metallic porous material impregnated with a solution of potassium chloride. EFFECT: improved design. 1 dwg