DEVICE FOR EVALUATING THE ELECTRICAL PROPERTIES OF THE BRAIN

摘要

The invention relates to medical engineering, in particular, to electronic devices for recording brain electrical properties and can be used for neurophysiological studies, assessment of the status of cerebral blood flow, the detection of malignant tumors and other bulk processes. Technical Problem Utility Model - expanding the functional properties of the device by introducing additional nodes providing multichannel measurement of electrical impedance of the brain tissue. The problem is solved in that, as in the prior art apparatus for evaluating electrical brain properties comprises a discharging electrode, patch panel with slots for connection, multi-channel preamplifier whose inputs are connected to respective jacks patch panel connections, and outputs to corresponding inputs multi-channel analog switch, analog-to-digital converter, a control unit and a memory unit on the basis of the microcontroller and interface unit with a computer, as opposed to the prototype it entered a multi-channel converter voltage-current digital-to-analog converter and multichannel analog switch inputs multichannel transducer voltage-current connected via further inputted multichannel analog switch to the output of digital-to-analog converter, the outputs of the multichannel transducer voltage-current connected to the inputs of a multichannel pre-amplifier, and the input digital-analog converter connected to the control unit.