Multiple tunable central cathodes on a paddle for increased medial-lateral and rostral-caudal flexibility via current steering
First Claim
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1. A neurostimulation paddle lead, comprising:
- a lead body having a paddle-shaped membrane; and
a plurality of electrodes arranged on an exterior surface of the paddle-shaped membrane, the plurality of electrodes comprising at least two outer electrode columns and at least one inner electrode column between the at least two outer electrode columns, wherein longitudinal electrode spacing is equal for all of the columns, wherein an individual electrode in the at least one inner electrode column is offset from at least two individual electrodes in at least one of the at least two outer electrode columns, wherein the at least two individual electrodes are transversely adjacent to the individual electrode in the at least one inner electrode column, and each of the at least two individual electrodes do not completely span across any electrode in the at least one inner electrode column.
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Abstract
A neurostimulation paddle lead, method of neurostimulation, and neurostimulation system are provided. The neurostimulation paddle lead carries a plurality of electrodes comprising at least four columns of electrodes having a spacing between two inner electrode columns less than a spacing between the inner electrode columns and adjacent outer electrode columns. The inner electrode columns may also be longitudinally offset from the outer electrode columns. The methods and neurostimulation systems steer current between the electrodes to modify a medial-lateral electrical field created adjacent spinal cord tissue.
55 Citations
20 Claims
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1. A neurostimulation paddle lead, comprising:
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a lead body having a paddle-shaped membrane; and a plurality of electrodes arranged on an exterior surface of the paddle-shaped membrane, the plurality of electrodes comprising at least two outer electrode columns and at least one inner electrode column between the at least two outer electrode columns, wherein longitudinal electrode spacing is equal for all of the columns, wherein an individual electrode in the at least one inner electrode column is offset from at least two individual electrodes in at least one of the at least two outer electrode columns, wherein the at least two individual electrodes are transversely adjacent to the individual electrode in the at least one inner electrode column, and each of the at least two individual electrodes do not completely span across any electrode in the at least one inner electrode column. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of providing therapy to a patient using a plurality of electrodes on a paddle-shaped membrane of a lead body where the plurality of electrodes on the paddle-shaped membrane are arranged in columns including a first inner electrode column, a first outer electrode column and a second outer electrode column, the method comprising:
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disposing the paddle-shaped membrane, including the first inner electrode column, the first outer electrode column and the second outer electrode column, adjacent to spinal cord tissue of the patient, wherein the first inner electrode column is between the first and second outer columns and electrode spacing is equal for all of the columns; configuring an individual electrode in the first inner electrode column as a cathode, the cathode being offset from at least two transversely adjacent electrodes in the first outer electrode column such that each of the at least two transversely adjacent electrodes do not completely span across the individual electrode in the first inner electrode column, configuring the at least two transversely adjacent electrodes in the first outer electrode column as anodes, the anodes being transversely positioned on the same side relative to, and rostrally and caudally relative to the cathode; and conveying electrical energy between the cathode and the anodes to create a medial-lateral electrical field that stimulates the spinal cord tissue. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification