Patent ID: 8862244

Claim:
An intracerebral electrode ( 10 , 11 ) comprising: a narrow, elongated body ( 1 ) for being implanted in the brain of a patient, and the elongated body ( 1 ) being provided with contact pads ( 2 ) that are electrically connected to a measuring apparatus for monitoring electric brain activity of the patient, a mounting member ( 4 ) for attaching the body to a head of a patient, the electrode body being hollow for receiving a treatment instrument ( 6 ) to create a thermolesion of a targeted cerebral area, and being provided with a closed distal end ( 5 ), and the electrode body comprising a closed inner fluid flow circuit ( 20 ), provided inside the electrode body ( 1 ) up to an area adjacent the closed distal end ( 5 ), wherein the closed inner fluid flow circuit comprises a hollow tube ( 20 ) that delimits a central channel ( 21 ) provided with at least one inlet opening ( 22 ) and one outlet opening ( 23 ), and fluid flows longitudinally through the central channel ( 21 ) the treatment instrument ( 6 ) is introduced in the central channel ( 21 ), a wall of the hollow tube ( 20 ) comprises a double wall ( 24 ) that delimits at least one peripheral channel ( 25 ) provided with at least one inlet opening ( 27 ) and one outlet opening ( 28 ), the central channel ( 21 ) and the peripheral channel ( 25 ) communicate with each other through the outlet opening ( 23 ) of one of the channels ( 21 ) and the inlet opening ( 27 ) of the other channel ( 25 ), the electrode comprises connection means ( 7 ) located outside the electrode body comprising a closed inner fluid flow circuit ( 20 ), provided inside the electrode body ( 1 ), and includes the inlet opening ( 22 ) of the central channel ( 21 ) and the outlet opening ( 28 ) of the peripheral channel ( 25 ) so as to connect the closed inner fluid flow circuit to an outer fluid flow circuit so that the fluid, moved along the outer fluid flow circuit, flows into the electrode through the inner circuit in order to control dissipation of heat or cold of the electrode and prevent any collateral damage due to a treatment with the help of the treatment instrument.