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 relatively far away from the 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 a first one of the inner electrodes as a cathode, a second one of the inner electrodes as an anode, 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;
reconfiguring the second one of the inner electrodes as a cathode; and
reconveying electrical energy between the cathodes and the anodes to create a medial-lateral electrical field that stimulates 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
16 Claims
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1. A method of providing therapy to a patient, comprising:
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disposing at least four electrodes relatively far away from the 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 a first one of the inner electrodes as a cathode, a second one of the inner electrodes as an anode, 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; reconfiguring the second one of the inner electrodes as a cathode; and reconveying electrical energy between the cathodes and the anodes to create a medial-lateral electrical field that stimulates the spinal cord tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of providing therapy to a patient, comprising:
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disposing at least four electrodes relatively close to the 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 a first one of the inner electrodes as a cathode, a second one of the inner electrodes as a cathode, 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; reconfiguring the second one of the inner electrodes as an anode; and reconveying electrical energy between the cathodes and the anodes to create a medial-lateral electrical field that stimulates the spinal cord tissue. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification