Patent ID: 8374703

Claim:
An apparatus for detection of aberrant neural-electric activity in a brain, the apparatus comprising: an introducer having a proximal end and a distal end, and a plurality of lumens with a port coupled to each lumen, the ports positioned at the distal end of the introducer, the proximal end configured to be coupled to an electrical connector, a reference electrode positioned at the distal end of the introducer; and three electrode members advanceable within the plurality of lumens; wherein each of the electrode members has an insulated proximal portion and an exposed distal portion, each electrode member having a non-deployed state and a deployed state, the exposed distal portion of each electrode member being structured to have a bend when each electrode member is in the deployed state; wherein when the electrode members are in the deployed state, the electrode members are substantially orthogonal to each other, and the bend of the electrode member is such that the exposed distal portions define a detection volume; and wherein each electrode member defines a different axis of a Cartesian coordinate system with an origin at the distal end of the introducer wherein the electrode members are configured to detect a direction of a focus of the aberrant neural electric activity based on the detection volume.