DEVICE CONNECTABLE TO A MACHINE FOR EXTRACORPOREAL TREATMENT OF THE BLOOD OF A PATIENT

A device connected to a machine (29) for extracorporeal treatment of blood of a patient comprises a sensor element (17) positionable on the patient's body for detecting the electrical potential (VI) of the blood in the patient's body and varying means (18) for modifying the electrical potential of blood treated by said machine (29), the varying means (18) being so programmed as to make the difference between the electrical potential (V2) of the blood exiting said machine (29) and the electrical potential (VI) measured by the sensor element (!7) lower than present value.