Management of stimulation safety limits in a neurostimulation system
First Claim
1. A neurostimulation system comprising:
- a neurostimulator configured to deliver electrical stimulation energy via a plurality of electrodes; and
controller circuitry configured to;
define a set of stimulation parameters for the plurality of electrodes as a function of independent contributions of a physical electrode parameter and an electrical source parameter for each electrode in the plurality electrodes; and
instruct the neurostimulator to deliver the electrical stimulation energy based on the defined set of stimulation parameters.
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Abstract
An electrical stimulation system for use with a plurality of electrodes implanted within a tissue region comprises a neurostimulator configured for delivering electrical stimulation energy to the plurality of electrodes in accordance with a set of stimulation parameters, thereby injecting a charge into the tissue region, a control device configured for receiving user input to modify the set of stimulation parameters, and controller/processor circuitry configured for, in response to the user input computing a charge injection metric value as a function of a physical electrode parameter and an electrical source parameter for a first set of the electrodes, wherein the electrode set comprises at least two electrodes, comparing the computed charge injection metric value to a safety threshold value, and performing a corrective action based on the comparison.
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Citations
20 Claims
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1. A neurostimulation system comprising:
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a neurostimulator configured to deliver electrical stimulation energy via a plurality of electrodes; and controller circuitry configured to; define a set of stimulation parameters for the plurality of electrodes as a function of independent contributions of a physical electrode parameter and an electrical source parameter for each electrode in the plurality electrodes; and instruct the neurostimulator to deliver the electrical stimulation energy based on the defined set of stimulation parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A neurostimulation system comprising:
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a neurostimulator configured to deliver electrical stimulation energy via a plurality of electrodes; and controller circuitry configured to; calculate a safety value of electrical stimulation energy for delivery by at least one of the plurality of electrodes as a function of independent contributions of a physical electrode parameter and an electrical source parameter for each electrode in the plurality electrodes. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of defining a set of stimulation parameters for delivery of stimulation energy by a neurostimulator configured to deliver the stimulation energy via a plurality of electrodes, the method comprising:
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defining a set of stimulation parameters as a function of independent contributions of a physical electrode parameter and an electrical source parameter for each electrode in the plurality electrodes; and instructing the neurostimulator to deliver the stimulation energy based on the defined set of stimulation parameters. - View Dependent Claims (18, 19, 20)
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Specification