System and method for independently operating multiple neurostimulation channels
First Claim
1. A multi-channel neurostimulation system, comprising:
- a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes;
stimulation output circuitry including electrical source circuitry of the same polarity configured for generating a plurality of pulsed electrical waveforms in a plurality of timing channels; and
control circuitry configured for instructing the stimulation output circuitry to serially couple the electrical source circuitry to different sets of the electrodes when pulses of the respective pulsed electrical waveforms do not temporally overlap each other, and for instructing the stimulation output circuitry to couple the electrical source circuitry to a union of the different electrode sets when pulses of the respective pulsed electrical waveforms temporally overlap each other.
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Abstract
A multi-channel neurostimulation system comprises a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes, stimulation output circuitry including electrical source circuitry of the same polarity configured for generating a plurality of pulsed electrical waveforms in a plurality of timing channels, and control circuitry configured for instructing the stimulation output circuitry to serially couple the electrical source circuitry to different sets of the electrodes when pulses of the respective pulsed electrical waveforms do not temporally overlap each other, and for instructing the stimulation output circuitry to couple the electrical source circuitry to a union of the different electrode sets when pulses of the respective pulsed electrical waveforms temporally overlap each other.
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Citations
20 Claims
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1. A multi-channel neurostimulation system, comprising:
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a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes; stimulation output circuitry including electrical source circuitry of the same polarity configured for generating a plurality of pulsed electrical waveforms in a plurality of timing channels; and control circuitry configured for instructing the stimulation output circuitry to serially couple the electrical source circuitry to different sets of the electrodes when pulses of the respective pulsed electrical waveforms do not temporally overlap each other, and for instructing the stimulation output circuitry to couple the electrical source circuitry to a union of the different electrode sets when pulses of the respective pulsed electrical waveforms temporally overlap each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A multi-channel neurostimulation system, comprising:
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a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes; a plurality of registers configured for storing a respective plurality of digital representations of different sets of the electrodes; a plurality of timers configuring for outputting phase enabling signals in accordance with a pulse duration and pulse frequency of a respective plurality of pulsed electrical waveforms; a plurality of AND gates, each of which has an input coupled to an output of a respective one of the registers and an input coupled to an output of a respective one of the timers; an OR gate having inputs coupled to respective outputs of the AND gates; and stimulation output circuitry having an input coupled to an output of the OR gate, the stimulation output circuitry including electrical source circuitry of the same polarity programmable to selectively couple to the electrodes via the electrical terminals based on the output of the OR gate. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification