Method and apparatus for the detection of aberrant neural-electric activity
First Claim
1. 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 adeployed 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.
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Abstract
Embodiments provide an apparatus and method for detection of aberrant neural-electric activity (ANEA) in the brain causing an epileptic seizure or other neurologic condition. One embodiment provides an apparatus for detection of ANEA comprising an introducer having at least one lumen. The introducer is introduced into brain tissue through an opening in the skull. A reference electrode is positioned at an introducer distal portion. A plurality of electrode members are advanceable within the at least one lumen with each member having an insulated portion and an exposed distal portion. The members have a non-deployed state in the introducer and a deployed state when outwardly advanced out of the introducer. In the deployed state, the members are substantially orthogonal to each other with the exposed distal portions defining a detection volume capable of determining an electric field vector produced by the ANEA and the direction of a foci of the ANEA.
38 Citations
15 Claims
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1. An apparatus for detection of aberrant neural-electric activity in a brain, the apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification