Electrical stimulator with voltage mode emulation using regulated current
First Claim
1. A method for controlling a system for delivering electrical stimulation therapy, the method comprising:
- selectively coupling, by a stimulation controller of a stimulation generator of the system, one or more of a plurality of electrodes of the system that are implanted within a patient to respective regulated current paths to deliver electrical stimulation to the patient;
selectively coupling, by the stimulation controller, at least another of the plurality of electrodes implanted within the patient to an unregulated current path to deliver the electrical stimulation to the patient;
generating, by one or more current regulators of the stimulation generator of the system, regulated currents for the regulated current paths;
determining, by one or more processors of the system, a level of the regulated current for each respective regulated current path in order to produce, at the one or more electrodes selectively coupled to the respective regulated current paths, a voltage level specified by user input; and
controlling, by the one or more processors, the stimulation generator to deliver the determined regulated currents via the respective regulated current paths.
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Abstract
Techniques are described for generating electrical stimulation current pulses for delivery of electrical stimulation therapy via a current-controlled system that emulates voltage pulses generated via a voltage-controlled system. In one example, a method includes receiving user input specifying a voltage level of electrical stimulation to be delivered by one or more of a plurality of electrodes implanted within the patient, selectively coupling the one or more electrodes to respective regulated current paths to deliver the electrical stimulation to the patient, selectively coupling at least another of the plurality of electrodes implanted within the patient to an unregulated current path to deliver the electrical stimulation to the patient, determining a regulated current for each respective regulated current path in order to produce the specified voltage level at the one or more electrodes selectively coupled to the respective regulated current paths, and delivering the determined regulated currents via the respective regulated current paths.
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Citations
23 Claims
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1. A method for controlling a system for delivering electrical stimulation therapy, the method comprising:
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selectively coupling, by a stimulation controller of a stimulation generator of the system, one or more of a plurality of electrodes of the system that are implanted within a patient to respective regulated current paths to deliver electrical stimulation to the patient; selectively coupling, by the stimulation controller, at least another of the plurality of electrodes implanted within the patient to an unregulated current path to deliver the electrical stimulation to the patient; generating, by one or more current regulators of the stimulation generator of the system, regulated currents for the regulated current paths; determining, by one or more processors of the system, a level of the regulated current for each respective regulated current path in order to produce, at the one or more electrodes selectively coupled to the respective regulated current paths, a voltage level specified by user input; and controlling, by the one or more processors, the stimulation generator to deliver the determined regulated currents via the respective regulated current paths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for delivering electrical stimulation therapy, the system comprising:
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a plurality of implantable electrodes; a stimulation generator comprising; a stimulation controller configured to; selectively couple one or more of the plurality of implantable electrodes to respective regulated current paths to deliver electrical stimulation to a patient, selectively couple at least another of the plurality of implantable electrodes to an unregulated current path to deliver the electrical stimulation to the patient, and one or more current regulators configured to generate regulated currents for the regulated current paths; and one or more processors configured to; determine the regulated current for each respective regulated current path in order to produce, at the one or more electrodes selectively coupled to the respective regulated current, a voltage level specified by user input; and control the stimulation generator to deliver the determined regulated currents via the one or more current regulators and the respective regulated current paths. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A device for delivering electrical stimulation therapy, the device comprising:
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means for selectively coupling one or more of a plurality of electrodes implanted within a patient to respective regulated current paths to deliver electrical stimulation to the patient; means for selectively coupling at least another of the plurality of electrodes implanted within the patient to an unregulated current path to deliver the electrical stimulation to the patient; means for determining a level of a regulated current for each respective regulated current path in order to produce, at the one or more electrodes selectively coupled to the respective regulated current paths, a voltage level specified by user input; means for generating the regulated current for each respective regulated current path; and means for delivering the determined regulated currents via the respective regulated current paths. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification