Neurostimulation system and method for rostro-caudally steering current using longitudinal ideal multipole configurations
First Claim
1. A system for an electrical neurostimulator coupled to a plurality of electrodes, comprising:
- a user-controlled input device configured for generating directional control signals; and
control circuitry configured for sequentially defining a plurality of different target configurations relative to the plurality of electrodes in response to the directional control signals, generating a plurality of stimulation parameter sets respectively corresponding to the plurality of different target configurations, each stimulation parameter set defining relative amplitude values for the plurality of electrodes that emulate the respective target configuration, and instructing the electrical neurostimulator to convey electrical energy to the plurality of electrodes in accordance with the plurality of stimulation parameter sets, wherein each of the plurality of different target configurations includes at least one pole that can be emulated as a fractionalized current value on the plurality of electrodes, and each of the plurality of different target configurations differs from other ones of the plurality of different target configurations in at least one value selected from the group of values consisting of;
a value for a number of poles, a polarity value for at least one of the poles;
a value defining a spatial relationship between at least two of the poles; and
a value defining relative intensities of the poles.
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Abstract
A system for an electrical neurostimulator coupled to a plurality of electrodes. The system comprises a user-controlled input device configured for generating directional control signals. The system further comprises control circuitry configured for sequentially defining a plurality of different ideal bipole/tripole configurations relative to the plurality of electrodes in response to the directional control signals, generating a plurality of stimulation parameter sets respectively corresponding to the plurality of ideal bipole/tripole configurations, each stimulation parameter set defining relative amplitude values for the plurality of electrodes that emulate the respective ideal bipole/tripole configuration, and instructing the electrical neurostimulator to convey electrical energy to the plurality of electrodes in accordance with the plurality of stimulation parameter sets.
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Citations
20 Claims
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1. A system for an electrical neurostimulator coupled to a plurality of electrodes, comprising:
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a user-controlled input device configured for generating directional control signals; and control circuitry configured for sequentially defining a plurality of different target configurations relative to the plurality of electrodes in response to the directional control signals, generating a plurality of stimulation parameter sets respectively corresponding to the plurality of different target configurations, each stimulation parameter set defining relative amplitude values for the plurality of electrodes that emulate the respective target configuration, and instructing the electrical neurostimulator to convey electrical energy to the plurality of electrodes in accordance with the plurality of stimulation parameter sets, wherein each of the plurality of different target configurations includes at least one pole that can be emulated as a fractionalized current value on the plurality of electrodes, and each of the plurality of different target configurations differs from other ones of the plurality of different target configurations in at least one value selected from the group of values consisting of;
a value for a number of poles, a polarity value for at least one of the poles;
a value defining a spatial relationship between at least two of the poles; and
a value defining relative intensities of the poles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for an electrical neurostimulator coupled to a plurality of electrodes, comprising:
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a user-controlled input device configured for generating directional control signals; and control circuitry configured for sequentially defining a plurality of different target configurations relative to the plurality of electrodes in response to the directional control signals, generating a plurality of stimulation parameter sets respectively corresponding to the plurality of different target configurations, each stimulation parameter set defining relative amplitude values for the plurality of electrodes that emulate the respective target configuration, and instructing the electrical neurostimulator to convey electrical energy to the plurality of electrodes in accordance with the plurality of stimulation parameter sets, wherein one sequence of the different target configurations begins with one of a narrow bipole configuration and a wide bipole configuration and ends with the other of the narrow bipole configuration and the wide bipole configuration. - View Dependent Claims (14, 15, 16, 17)
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18. A system for an electrical neurostimulator coupled to a plurality of electrodes, comprising:
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a user-controlled input device configured for generating directional control signals; and control circuitry configured for sequentially defining a plurality of different target configurations relative to the plurality of electrodes in response to the directional control signals, generating a plurality of stimulation parameter sets respectively corresponding to the plurality of target configurations, each stimulation parameter set defining relative amplitude values for the plurality of electrodes that emulate the respective target configuration, and instructing the electrical neurostimulator to convey electrical energy to the plurality of electrodes in accordance with the plurality of stimulation parameter sets, wherein the control circuitry is configured for sequentially defining the different target configurations in the following order;
a narrow tripole configuration, a narrow upper bipole configuration, a wide upper bipole configuration, a wide tripole configuration, a wide lower bipole configuration, a narrow lower bipole configuration, and back to the narrow tripole configuration. - View Dependent Claims (19, 20)
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Specification