ELECTROCHEMICAL SENSOR FOR TRANSCUTAN MEASUREMENT OF PARTIAL PRESSURE OF CARBON DIOXIDE IN AN ORGANISM

摘要

1. An electrochemical sensor for the transcutaneous measurement of the partial perssure of carbon dioxide (pCO2 ) of an organism, based on the principle of pCO2 measurement by measuring the pH value of an electrolyte which is in gas exchange with the measuring point through a diaphragm permeable to CO2 , but impermeable for the electrolyte and which is heated, for the hyperemisation of the measureing point, to a constant temperature, between 37 and 45 degrees C and is thermostatically controlled, wherein a measuring electrode (1) is provided which is in physical contact with the electrolyte and whose potential can be picked off relative to a reference electrode (3) which is also in contact with the electrolyte, characterized in that said measuring electrode is an iridium/iridium oxide measuring electrode (1).