Systems and method of adjusting the compliance voltage in a neuromodulation device
First Claim
1. A therapeutic neuromodulation system, comprising:
- a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes implanted within tissue;
analog output circuitry configured for delivering therapeutic electrical energy between the plurality of electrical terminals in accordance with a set of modulation parameters that includes a defined current value;
a voltage regulator configured for supplying an adjustable compliance voltage to the analog output circuitry;
monitoring circuitry configured for measuring an electrical parameter indicative of a change of impedance in the tissue; and
control/processing circuitry configured for automatically performing a compliance voltage calibration process at a compliance voltage adjustment interval including;
periodically computing an adjusted compliance voltage value as a function of a compliance voltage margin, including;
periodically directing the monitoring circuitry to measure the electrical parameter value, determining voltage drops based on the measured electrical parameters;
computing a function of at least two of the voltage drops indicative of a rate of impedance change; and
adjusting the at least one of the compliance voltage adjustment interval and the compliance voltage margin based on the computed function; and
directing the voltage regulator to adjust the compliance voltage to the adjusted compliance voltage value,wherein the control/processing circuitry is configured for automatically adjusting at least one of the compliance voltage adjustment interval and the compliance voltage margin during the voltage compliance calibration process.
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Accused Products
Abstract
A therapeutic neuromodulation system configured for providing therapy to a patient. The therapeutic neuromodulation system comprises a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes implanted within tissue, analog output circuitry configured for delivering therapeutic electrical energy between the plurality of electrical terminals in accordance with a set of modulation parameters that includes a defined current value, a voltage regulator configured for supplying an adjustable compliance voltage to the analog output circuitry, and control/processing circuitry configured for automatically performing a compliance voltage calibration process at a compliance voltage adjustment interval by periodically computing an adjusted compliance voltage value as a function of a compliance voltage margin. The control/processing circuitry may also be configured for automatically adjusting at least one of the compliance voltage adjustment interval and the compliance voltage margin during the compliance voltage calibration process.
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Citations
40 Claims
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1. A therapeutic neuromodulation system, comprising:
- a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes implanted within tissue;
analog output circuitry configured for delivering therapeutic electrical energy between the plurality of electrical terminals in accordance with a set of modulation parameters that includes a defined current value;
a voltage regulator configured for supplying an adjustable compliance voltage to the analog output circuitry;
monitoring circuitry configured for measuring an electrical parameter indicative of a change of impedance in the tissue; and
control/processing circuitry configured for automatically performing a compliance voltage calibration process at a compliance voltage adjustment interval including;
periodically computing an adjusted compliance voltage value as a function of a compliance voltage margin, including;
periodically directing the monitoring circuitry to measure the electrical parameter value, determining voltage drops based on the measured electrical parameters;
computing a function of at least two of the voltage drops indicative of a rate of impedance change; and
adjusting the at least one of the compliance voltage adjustment interval and the compliance voltage margin based on the computed function; and
directing the voltage regulator to adjust the compliance voltage to the adjusted compliance voltage value,wherein the control/processing circuitry is configured for automatically adjusting at least one of the compliance voltage adjustment interval and the compliance voltage margin during the voltage compliance calibration process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
- a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes implanted within tissue;
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40. A therapeutic neuromodulation system, comprising:
- a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes implanted within tissue;
analog output circuitry configured for delivering therapeutic electrical energy between the plurality of electrical terminals in accordance with a set of modulation parameters that includes a defined current value;
a voltage regulator configured for supplying an adjustable compliance voltage to the analog output circuitry;
monitoring circuitry configured for measuring an electrical parameter indicative of a change of impedance in the tissue; and
control/processing circuitry configured for automatically performing a compliance voltage calibration process at a compliance voltage adjustment interval including;
compensating for trends in tissue impedance, including computing an adjusted compliance voltage value as a function of a compliance voltage margin, including;
periodically directing the monitoring circuitry to measure the electrical parameter value, determining voltage drops based on the measured electrical parameters;
computing a function of at least two of the voltage drops indicative of a rate of impedance change; and
setting the compliance voltage adjustment interval and the compliance voltage margin based on the computed function; and
directing the voltage regulator to adjust the compliance voltage to the adjusted compliance voltage value, wherein the control/processing circuitry is configured for automatically adjusting at least one of the compliance voltage adjustment interval and the compliance voltage margin during the voltage compliance calibration process.
- a plurality of electrical terminals configured for being respectively coupled to a plurality of electrodes implanted within tissue;
Specification