Neurostimulation system with three-dimensional lead migration detection and automatic neurostimulation correction
First Claim
1. A neurostimulation system, comprising:
- an implantable device connected to at least two implantable neurostimulation leads, the implantable device including a neurostimulator configured to deliver, using a first set of stimulation parameters, electrical energy through the neurostimulation leads to spinal cord tissue; and
an external device configured to communicate with the implantable device, wherein the neurostimulation system includes;
monitoring circuitry configured to monitor migration between the leads and monitor migration of at least one of the leads with respect to the spinal cord tissue; and
at least one controller/processor configured to communicate with the monitoring circuitry, to use the monitored migration between the leads, the monitored migration of at least one of the leads with respect to the spinal cord tissue, and at least one threshold value to determine when lead migration is significant, and to generate, when lead migration is determined to be significant, a second set of stimulation parameters using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue,wherein the neurostimulator is configured to use the first set of stimulation parameters to stimulate a virtual multipole defining a volume of activation relative to the spinal cord tissue, and to use the second set of stimulation parameters, which was generated using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue, to stimulate the virtual multipole wherein the second set of stimulation parameters include fractionalized amplitude values that emulate the virtual multipole.
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Abstract
A neurostimulation system configured for providing therapy to a patient, comprises at least one implantable neurostimulation lead configured for being implanted adjacent target tissue of the patient, and an implantable neurostimulator configured for delivering electrical stimulation energy to the implantable neurostimulation lead(s) in accordance with a set of stimulation parameters capable, and monitoring circuitry configured for taking at least one measurement indicative of a three-dimensional migration of the neurostimulation lead(s) from a baseline position. The neurostimulation system further comprises at least one controller/processor configured for determining whether the three-dimensional migration of the neurostimulation lead(s) from the baseline position has occurred based on the measurement(s), and, based on the determined three-dimensional migration, generating a new set of stimulation parameters, and reprogramming the implantable neurostimulator with the new set of stimulation parameters.
29 Citations
20 Claims
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1. A neurostimulation system, comprising:
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an implantable device connected to at least two implantable neurostimulation leads, the implantable device including a neurostimulator configured to deliver, using a first set of stimulation parameters, electrical energy through the neurostimulation leads to spinal cord tissue; and an external device configured to communicate with the implantable device, wherein the neurostimulation system includes; monitoring circuitry configured to monitor migration between the leads and monitor migration of at least one of the leads with respect to the spinal cord tissue; and at least one controller/processor configured to communicate with the monitoring circuitry, to use the monitored migration between the leads, the monitored migration of at least one of the leads with respect to the spinal cord tissue, and at least one threshold value to determine when lead migration is significant, and to generate, when lead migration is determined to be significant, a second set of stimulation parameters using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue, wherein the neurostimulator is configured to use the first set of stimulation parameters to stimulate a virtual multipole defining a volume of activation relative to the spinal cord tissue, and to use the second set of stimulation parameters, which was generated using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue, to stimulate the virtual multipole wherein the second set of stimulation parameters include fractionalized amplitude values that emulate the virtual multipole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method, comprising:
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delivering, using a first set of stimulation parameters, electrical energy through neurostimulation leads to stimulate a virtual multipole defining a volume of activation relative to spinal cord tissue; monitoring migration between the neurostimulation leads; monitoring migration of at least one of the leads with respect to the spinal cord tissue; using at least one controller/processor to use the monitored migration between the leads, the monitored migration of at least one of the leads with respect to the spinal cord tissue, and at least one threshold value to determine when lead migration is significant, and generate, when lead migration is determined to be significant, a second set of stimulation parameters using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue; and delivering, using the second set of stimulation parameters which was generated using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue, electrical energy through neurostimulation leads to stimulate the virtual multipole defining the volume of activation relative to the spinal cord tissue, wherein the second set of stimulation parameters include fractionalized amplitude values that emulate the virtual multipole. - View Dependent Claims (19)
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20. A non-transitory machine-readable medium including instructions, which when operated on by a machine, cause the machine to perform a method including:
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deliver, using a first set of stimulation parameters, electrical energy through neurostimulation leads to stimulate a virtual multipole defining a volume of activation relative to spinal cord tissue; monitor migration between the neurostimulation leads; monitor migration of at least one of the leads with respect to the spinal cord tissue; use the monitored migration between the leads;
the monitored migration of at least one of the leads with respect to the spinal cord tissue, and at least one threshold value to determine when lead migration is significant, and generate, when lead migration is determined to be significant, a second set of stimulation parameters using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue; anddeliver, using the second set of stimulation parameters which was generated using the monitored migration between the leads and the monitored migration of at least one of the leads with respect to the spinal cord tissue, electrical energy through neurostimulation leads to stimulate the virtual multipole defining the volume of activation relative to the spinal cord tissue, wherein the second set of stimulation parameters include fractionalized amplitude values that emulate the virtual multipole.
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Specification