Voltage/current regulator improvements for an implantable medical device
First Claim
1. An implantable medical device delivering a therapy, the therapy being dynamically variable among a plurality of discrete output voltages, comprising:
- a power source having an output;
a first electrode and a second electrode;
a therapy module, operatively coupled to the power source, the first electrode and the second electrode, comprising a dynamically configurable capacitor arrangement providing a plurality of lines, each of the plurality of lines having one of the plurality of discrete output voltages;
wherein the dynamically configurable capacitor arrangement comprises a plurality of capacitors configured with;
a first one of the plurality of capacitors providing, at least in part, a first one of the plurality of discrete output voltages on a first one of the plurality of lines and;
a combination of the first one of the plurality of capacitors and a second one of the plurality of capacitors providing, at least in part, a second one of the plurality of discrete output voltages on a second one of the plurality of lines; and
a controller, operatively coupled to the therapy module, selectively coupling at least one of the plurality of lines to at least one of the first electrode and the second electrode to dynamically provide an individual one of the plurality of discrete output voltages across the first electrode and the second electrode.
1 Assignment
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Accused Products
Abstract
Apparatus and method provide flexibility in generating a stimulation waveform to an electrode of an implantable medical device. The stimulation waveform comprises at least one stimulation pulse. The embodiment of the invention supports a generation of a stimulation pulse in which an amplitude and an electrical polarity of the stimulation pulse can be dynamically changed. The embodiment comprises a capacitor arrangement, a regulator and a switching array. The capacitor arrangement can be reconfigured with respect to an electrical reference through the switching array in order for the regulator to deliver the stimulation pulse to a pair of electrodes. In another embodiment, a plurality of stimulation waveforms are generated in which different stimulation waveforms are associated with different electrodes. With the embodiment, a plurality of regulators are connected and reconfigured to the capacitor arrangement in order that the different stimulation waveforms are generated by different regulators.
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Citations
18 Claims
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1. An implantable medical device delivering a therapy, the therapy being dynamically variable among a plurality of discrete output voltages, comprising:
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a power source having an output; a first electrode and a second electrode; a therapy module, operatively coupled to the power source, the first electrode and the second electrode, comprising a dynamically configurable capacitor arrangement providing a plurality of lines, each of the plurality of lines having one of the plurality of discrete output voltages; wherein the dynamically configurable capacitor arrangement comprises a plurality of capacitors configured with; a first one of the plurality of capacitors providing, at least in part, a first one of the plurality of discrete output voltages on a first one of the plurality of lines and; a combination of the first one of the plurality of capacitors and a second one of the plurality of capacitors providing, at least in part, a second one of the plurality of discrete output voltages on a second one of the plurality of lines; and a controller, operatively coupled to the therapy module, selectively coupling at least one of the plurality of lines to at least one of the first electrode and the second electrode to dynamically provide an individual one of the plurality of discrete output voltages across the first electrode and the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for delivering a dynamically variable therapy among a plurality of discrete output voltages using an implantable medical device comprising a therapy module and a controller operatively coupled to the therapy module, the therapy module comprising a dynamically configurable capacitor arrangement and a plurality of lines, the capacitor arrangement comprising a plurality of capacitors configured with a first one of the plurality of capacitors providing, at least in part, a first one of the plurality of discrete output voltages on a first one of the plurality of lines and a combination of the first one of the plurality of capacitors and a second one of the plurality of capacitors providing, at least in part, a second one of the plurality of discrete output voltages on a second one of the plurality of lines, comprising the steps of:
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selecting an individual one of the plurality of discrete voltages with the controller; dynamically configuring the capacitor arrangement to provide the individual one of the plurality of discrete output voltages over one of the plurality of lines; and delivering the therapy across a first electrode and a second electrode based on the individual one of the plurality of discrete voltages. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An implantable medical device delivering a therapy, the therapy being dynamically variable among a plurality of discrete voltages, comprising:
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a power source having an output; a telemetry module; a processor, operatively coupled to the telemetry module, that communicates with a programmer through the telemetry module in order to configure the implantable medical device; a plurality of electrodes; a therapy module operatively coupled to the plurality of electrodes providing a neurological stimulation waveform to a patient and operatively coupled to the processor receiving at least one of configuration information and commands about therapeutic treatment, the therapy module comprising; a dynamically configurable capacitor arrangement operatively coupled to the regulator and comprising a plurality of capacitors charged by the output of the power source and configured with; a first one of the plurality of capacitors providing, at least in part, a first one of the plurality of discrete output voltages; and a combination of the first one of the plurality of capacitors and a second one of the plurality of capacitors providing, at least in part, a second one of the plurality of discrete output voltages on a second one of the plurality of lines; a regulator converting the output of the capacitor arrangement to the therapy based on the individual one of the plurality of discrete output voltages; a controller selectively coupling the plurality of capacitors to the regulator to dynamically provide one of the plurality of discrete output voltages across the plurality of electrodes; a switching array operatively coupled to the capacitor arrangement and to the controller, wherein the switching array dynamically configures the capacitor arrangement based on the selection the individual one of the plurality of discrete output voltages by the controller, the capacitor arrangement providing a capacitor arrangement output based on the a configuration of the capacitor arrangement.
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Specification