System and method of adjusting the compliance voltage in a neuromodulation device
First Claim
1. A method for improving efficiency of a neuromodulation system having a voltage regulator, comprising:
- automatically calibrating a compliance voltage for the voltage regulator of the neuromodulation system at a compliance voltage adjustment interval, the calibrating including determining a rate of change in tissue impedance and adjusting the compliance voltage adjustment interval and a compliance voltage margin based on the determined rate of change in tissue impedance to improve the efficiency of the neuromodulation system.
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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
20 Claims
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1. A method for improving efficiency of a neuromodulation system having a voltage regulator, comprising:
automatically calibrating a compliance voltage for the voltage regulator of the neuromodulation system at a compliance voltage adjustment interval, the calibrating including determining a rate of change in tissue impedance and adjusting the compliance voltage adjustment interval and a compliance voltage margin based on the determined rate of change in tissue impedance to improve the efficiency of the neuromodulation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A non-transitory machine-readable medium including instructions, which when executed by a machine within a neuromodulation system, cause the machine to improve efficiency of the neuromodulation system:
automatically calibrate a compliance voltage for a voltage regulator of the neuromodulation system at a compliance voltage adjustment interval, the calibrating including determining a rate of change in tissue impedance and adjusting the compliance voltage adjustment interval and a compliance voltage margin based on the determined rate of change in tissue impedance to improve the efficiency of the neuromodulation system. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
Specification