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 method of providing therapy to a patient, comprising:
- disposing at least four electrodes adjacent spinal cord tissue of the patient in a medial-lateral electrode arrangement, wherein the at least four electrodes has two inner electrodes and two outer electrodes flanking the two inner electrodes;
configuring the inner electrodes as cathodes, and the outer electrodes as anodes;
conveying electrical energy between the cathodes and the anodes to create a medial-lateral electrical field that stimulates the spinal cord tissue; and
incrementally shifting cathodic current between the cathodes to modify the medial-lateral electrical field.
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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.
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Citations
24 Claims
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1. A method of providing therapy to a patient, comprising:
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disposing at least four electrodes adjacent spinal cord tissue of the patient in a medial-lateral electrode arrangement, wherein the at least four electrodes has two inner electrodes and two outer electrodes flanking the two inner electrodes; configuring the inner electrodes as cathodes, and the outer electrodes as anodes; conveying electrical energy between the cathodes and the anodes to create a medial-lateral electrical field that stimulates the spinal cord tissue; and incrementally shifting cathodic current between the cathodes to modify the medial-lateral electrical field. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A neurostimulation system for providing therapy to a patient, comprising:
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a neurostimulation paddle lead carrying a plurality of electrodes comprising at least four electrodes extending in a direction transverse to a longitudinal axis of the paddle lead, wherein the at least four electrodes has two inner electrodes and two outer electrodes flanking the two inner electrodes; and a neurostimulator for configuring the inner electrodes as cathodes and the outer electrodes as anodes, for conveying electrical energy between the cathodes and the anodes to create an electrical field that stimulates tissue of the patient, and for incrementally shifting cathodic current between the cathodes to modify the electrical field. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of providing therapy to a patient, comprising:
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disposing at least four columns of electrodes adjacent spinal cord tissue of the patient, the at least four electrode columns having two inner electrode columns and two outer electrode columns flanking the two inner electrode columns; configuring at least two electrodes of the inner electrode columns as cathodes, and at least one electrode of each of the outer electrode columns as anodes; conveying electrical energy between the cathodes and the anodes to create a medial-lateral electrical field that stimulates the spinal cord tissue; and incrementally shifting cathodic current between the cathodes to modify the medial-lateral electrical field. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A neurostimulation system for providing therapy to a patient, comprising:
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a neurostimulation paddle lead carrying a plurality of electrodes comprising at least four columns of electrodes extending along a longitudinal axis of the paddle lead, wherein the at least four electrode columns has two inner electrode columns and two outer electrode columns flanking the two inner electrode columns; and a neurostimulator for configuring at least two electrodes of the inner electrode columns as cathodes, and at least one electrode of each of the outer electrode columns as anodes, conveying electrical energy between the cathodes and the anodes to create an electrical field that stimulates tissue of the patient, and incrementally shifting cathodic current between the cathodes to modify the electrical field. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification