Adaptable current regulator for delivery of current-based electrical stimulation therapy
First Claim
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1. A method for delivering electrical stimulation therapy to a patient, the method comprising:
- delivering electrical stimulation current via one of a plurality of electrodes implanted within the patient;
delivering electrical stimulation current via another of the plurality of electrodes implanted within the patient; and
controlling, with a stimulation controller, an adaptable current regulator to selectively operate in either a regulated mode in which the adaptable current regulator operates as a regulated current path or an unregulated mode in which the adaptable current regulator operates as an unregulated current path,wherein at least one of the electrodes delivering electrical stimulation current is coupled to the adaptable current regulator.
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Abstract
A medical electrical stimulator provides selective control of stimulation via a combination of two or more electrodes coupled to respective regulated current paths and one or more electrodes coupled to unregulated current paths. Constant current sources may control the current that is sourced or sunk via respective regulated current paths. An unregulated current path may sink or source current to and from an unregulated voltage source that serves as a reference voltage. Unregulated electrodes may function as unregulated anodes to source current from a reference voltage or unregulated cathodes to sink current to a reference voltage.
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Citations
60 Claims
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1. A method for delivering electrical stimulation therapy to a patient, the method comprising:
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delivering electrical stimulation current via one of a plurality of electrodes implanted within the patient; delivering electrical stimulation current via another of the plurality of electrodes implanted within the patient; and controlling, with a stimulation controller, an adaptable current regulator to selectively operate in either a regulated mode in which the adaptable current regulator operates as a regulated current path or an unregulated mode in which the adaptable current regulator operates as an unregulated current path, wherein at least one of the electrodes delivering electrical stimulation current is coupled to the adaptable current regulator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 57)
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15. A device for delivering electrical stimulation therapy to a patient, the device comprising:
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a plurality of implantable electrodes; a plurality of adaptable current regulators that deliver electrical stimulation current via the electrodes; and a stimulation controller configured to control at least one of the adaptable current regulators to selectively operate in either a regulated mode in which the at least one adaptable current regulator operates as a regulated current path, and to control the at least one of the adaptable current regulators to selectively operate in an unregulated mode in which the at least one adaptable current regulator operates as an unregulated current path. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 58)
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29. A device for delivering electrical stimulation therapy to a patient, the device comprising:
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means for delivering electrical stimulation current via one of a plurality of implantable electrodes; means for delivering electrical stimulation current via another of the plurality of implantable electrodes; an adaptable current regulator means for selectively operating in either a regulated mode in which the adaptable current regulator means operates as a regulated current path or an unregulated mode in which the adaptable current means operates as an unregulated current path; means for controlling the adaptable current regulator means to selectively operate in the regulated mode or the unregulated mode, wherein at least one of the electrodes delivering electrical stimulation current is coupled to the adaptable current regulator means. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 59)
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43. A non-transitory computer-readable storage medium comprising instructions that, when executed by a processor, cause the processor to:
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deliver electrical stimulation current via one of a plurality of electrodes implanted within the patient; deliver electrical stimulation current via another of the plurality of electrodes implanted within the patient; and control an adaptable current regulator to selectively operate in either a regulated mode in which the adaptable current regulator operates as a regulated current path or an unregulated mode in which the adaptable current regulator operates as an unregulated current path, wherein at least one of the electrodes delivering electrical stimulation current is coupled to the adaptable current regulator. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 60)
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Specification