Implantable Device for Acquisition and Monitoring of Brain Bioelectric Signals and for Intracranial Stimulation

摘要

An implantable device for the acquisition and monitoring of brain bioelectric signals is described. The implantable device has a plurality of active electrodes configured to detect brain bioelectric signals, the active electrodes being arranged on a grid connected to an electronic module of the implantable device according to a predefined pattern. The active electrodes are connected to a microprocessor of the electronic module through respective paths formed on the grid and connected to at least one analog input unit arranged in the electronic module, the at least one analog input unit being in turn connected to at least one passive electrode and to the microprocessor through a data bus. The at least one analog input unit has an analog-to-digital converter for each active electrode connected thereto. A data acquisition and processing system, which includes the implantable device is also described.

主权项

1. An implantable device (150) for the acquisition and monitoring of brain bioelectric signals, said implantable device (150) comprising a plurality of active electrodes (1100) suitable to detect brain bioelectric signals, said active electrodes (1100) being arranged on a grid (1000) connected to an electronic module (200) of the implantable device (150), wherein the active electrodes (1100) are connected to a microprocessor (213) of said electronic module (200) through respective paths (115) different from each other, formed on said grid (1000) and connected to at least one analog input unit (201, 202, 203, 204, 205, 206, 207, 208) arranged in the electronic module (200), said at least one analog input unit being in turn connected to at least one passive electrode (REF1, REF2, REF3, REF4, REFS, REF6, REF7, REF8) and to said microprocessor (213) through a data bus (214), and wherein the at least one analog input unit (201, 202, 203, 204, 205, 206, 207, 208) comprises an analog-to-digital converter for each active electrode (1100) connected thereto, said analog-to-digital converter being configured to generate digital replicas of the analog signals received from the active electrodes (1100) and said microprocessor (213) being configured to simultaneously read the outputs of the analog-to-digital converters.