PH PROBE Russian patent published in 1998 - IPC

FIELD: medical engineering. SUBSTANCE: device has ring-shaped measuring antimonic electrodes rigidly fixable on thin-walled bushings, sealed flexible tube pulled over bushings, chlorinated silver comparison electrode placed in nonmetal casing with electrolytic key, and conductors connecting all electrodes to plug. Flexible tube end faces are hermetically bound to end faces of ring-shaped antimonic electrodes using for instance polymer glue. End piece connected to terminal antimonic electrode bushing with flexible tube is fixed on working end of the flexible tube, which flexible region length is not less than external diameter of the tube. Ratio of external diameter of the end piece to external diameter of the tube is equal to 1-2. End piece is producible from nonmetal material and is either main or supplemental casing of chlorinated silver comparison electrode. End piece is producible from metal corrosion-proof material and chlorinated silver comparison electrode optionally has autonomous casing. EFFECT: enhanced effectiveness of artificial blood circulation. 4 cl, 1 dwg \