SENSOR FOR MONITORING IONIC ACTIVITY IN BIOLOGICAL FLUIDS

摘要

The invention relates to the field of biomedical apparatus for determining ionic activity in a biological fluid, and comprises a plastic tube (6) in which a sensor (12) is inserted, said sensor (12) being suitable for reading ionic activity in a fluid passing through the tube (6). Two electrodes (10) are inserted in the tube (6), one of which is connected to the sensor (12) while the other is in direct contact with the fluid. The electrodes (10) are connected to a data processing unit which transforms electrical signals into numerical values and visualizes them in alphanumeric and/or graphic form. The invention also relates to a process for realizing the sensor (12), in the form of a membrane obtained by evaporation of a PVC solution in which a carrier matrix for a determined ion is also inserted.