Automatic anode and cathode fractional control and location to selectively avoid dorsal root stimulation
First Claim
1. A neurostimulation system, comprising:
- a neurostimulation lead configured to be implanted along a spinal cord of a patient, the neurostimulation lead including a paddle having a longitudinal axis and an array of electrodes;
a neurostimulation device configured to deliver electrical stimulation energy to active ones of the electrode array; and
control/processing circuitry configured to;
instruct the neurostimulation device to configure an active one of the electrode array as a cathode, and two active ones of the electrode array longitudinally flanking and laterally offset from the cathode as anodes;
select a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord; and
instruct the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.
1 Assignment
0 Petitions
Accused Products
Abstract
A therapeutic neurostimulation system configured for providing therapy to a patient. The neurostimulation system comprises a neurostimulation lead having an array of electrodes arranged along a longitudinal axis configured for being implanted along a spinal cord of a patient, a neurostimulation device configured for delivering electrical stimulation energy to active ones of the electrode array, and control/processing circuitry for instructing the neurostimulation device to configure an active electrode as a cathode, and two active electrodes longitudinally flanking and laterally offset from the cathode as anodes, selecting a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord, and instructing the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio.
71 Citations
20 Claims
-
1. A neurostimulation system, comprising:
-
a neurostimulation lead configured to be implanted along a spinal cord of a patient, the neurostimulation lead including a paddle having a longitudinal axis and an array of electrodes; a neurostimulation device configured to deliver electrical stimulation energy to active ones of the electrode array; and control/processing circuitry configured to; instruct the neurostimulation device to configure an active one of the electrode array as a cathode, and two active ones of the electrode array longitudinally flanking and laterally offset from the cathode as anodes; select a ratio of stimulation amplitude values for the two anodes based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord; and instruct the neurostimulation device to distribute the electrical stimulation energy between the two anodes in accordance with the selected stimulation amplitude value ratio. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An external controller for use with a neurostimulation device coupled to an array of electrodes arranged along a longitudinal axis of the spinal column of the patient, the external controller comprising:
-
a user interface configured to receive user input; control/processing circuitry configured to generate a set of stimulation parameters in response to the user input, the stimulation parameter set including an electrode combination designating one of the electrodes as a cathode, and two electrodes longitudinally flanking and laterally offset from the cathode as anodes, the stimulation parameter set further including stimulation amplitude values for the two anodes, the stimulation amplitude values having a ratio based on a known longitudinal location of the implanted neurostimulation lead relative to the spinal cord; and output circuitry configured for transmitting the stimulation parameter set to the neurostimulation device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
Specification