MICROSONDE FOR CATHETER USE, FOR THE CONTINUOUS MEASUREMENT OF PARTIAL OXYGEN PRESSURE

摘要

Microsonde for catheter use, operating under the principle of oxygen polarography, namely intended for continuous and instantaneous determination of oxygen partial pressure in blood vessels. The measurement head of said sonde has a diameter of 0.6 mm, comprises a platinum wire as a cathode and a paste containing powdered silver as anode. The head is covered with a first membrane of collodion against said anode, an electrolyte-impregnated support and a selectively gas-permeable thin membrane.