Patent ID: 8078281
Filing Date: 2011-12-13
Classification: A61N

Abstract:
1. Apparatus for chronic treating neurological disorders by means of brain stimulation comprising: at least an electro-catheter ( a stimulation device ( at least a stimulation module ( at least an acquisition module ( wherein the stimulation device ( 2 ) is able to detect the local field potential characterizing the brain activity also at the same time of sending the stimulating signal ( 15 ) to the patient, wherein the acquisition module ( 8 ) comprises at least a suppression filter ( 22 ) of a stimulus artefact ( 16 ), the suppression filter ( 22 ) attenuating the stimulus artefact ( 16 ) of a factor A F through a frequency analog conditioning and characterized in that the acquisition module ( 8 ) comprises at least two sub-blocks, one differential amplification sub-block ( 18 ) and one monopolar amplification sub-block ( 19 ), the differential amplification sub-block ( 18 ) allowing amplifying the potential difference of the input signals(V 1 A ;V 2 A ) to the same and allowing obtaining also a difference in the signals (V 01 ) reducing a signal of common mode, the suppression filter ( 22 ) being placed downwards the differential amplification sub-block ( 18 ), said suppression filter ( 22 ) receiving as input the difference of signals (V 01 ) the monopolar amplification sub-block ( 19 ) receiving as input the signal (V 02 ) outgoing from the suppression filter ( 22 ).