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;
conveying electrical energy between the electrodes to create a medial-lateral electrical field having a locus on one lateral side of the midline of the spinal cord tissue; and
conveying electrical energy between the electrodes to create a medial-lateral electrical field having a locus on the other lateral side of the midline of the spinal cord tissue.
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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
9 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; conveying electrical energy between the electrodes to create a medial-lateral electrical field having a locus on one lateral side of the midline of the spinal cord tissue; and conveying electrical energy between the electrodes to create a medial-lateral electrical field having a locus on the other lateral side of the midline of the spinal cord tissue. - View Dependent Claims (2, 3, 4, 5)
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6. A neurostimulation system for providing therapy to a patient, comprising:
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a neurostimulation paddle lead configured for being implanted within an epidural space above spinal cord tissue of the patient, the 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 configured for conveying electrical energy between the electrodes to create a medial-lateral electrical field having a locus on one lateral side of the midline of the spinal cord tissue, and conveying electrical energy between the electrodes to create a medial-lateral electrical field having a locus on the other lateral side of the midline of the spinal cord tissue. - View Dependent Claims (7, 8, 9)
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Specification