FRACTIONALIZED STIMULATION PULSES IN AN IMPLANTABLE STIMULATOR DEVICE
First Claim
1. An implantable stimulator device (ISD), comprising:
- a memory configured to store a first frequency, wherein the first frequency comprises a stimulation frequency that is considered therapeutically effective for a patient;
logic configured to define a group of a plurality of pulses, wherein the pulses within the group have a second frequency greater than or equal to 2000 Hz; and
source or sink circuitry configured to periodically apply the group of the pulses to at least one electrode at the first frequency.
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Abstract
A method for configuring stimulation pulses in an implantable stimulator device having a plurality of electrodes is disclosed, which method is particularly useful in adjusting the electrodes by current steering during initialization of the device. In one aspect, a set of ideal pulses for patient therapy is determined, in which at least two of the ideal pulses are of the same polarity and are intended to be simultaneous applied to corresponding electrodes on the implantable stimulator device during an initial duration. These pulses are reconstructed into fractionalized pulses, each comprised of pulse portions. The fractionalized pulses are applied to the corresponding electrodes on the device during a final duration, but the pulse portions of the fractionalized pulses are not simultaneously applied during the final duration.
5 Citations
30 Claims
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1. An implantable stimulator device (ISD), comprising:
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a memory configured to store a first frequency, wherein the first frequency comprises a stimulation frequency that is considered therapeutically effective for a patient; logic configured to define a group of a plurality of pulses, wherein the pulses within the group have a second frequency greater than or equal to 2000 Hz; and source or sink circuitry configured to periodically apply the group of the pulses to at least one electrode at the first frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for creating pulses in an implantable stimulator device (ISD), comprising:
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receiving a first frequency at the ISD, wherein the first frequency comprises a stimulation frequency that is considered therapeutically effective for a patient; and constructing in the ISD groups of a plurality of pulses that can be applied to at least one electrode of the ISD, wherein the pulses within each group are constructed at a second frequency greater than or equal to 2000 Hz, and wherein the groups are constructed at the first frequency. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method for providing stimulation to at least one electrode of an implantable stimulator device (ISD) implanted in a patient, comprising:
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receiving a first frequency at the ISD, wherein the first frequency comprises a stimulation frequency determined to be therapeutically effective for the patient; constructing in the ISD a group of a plurality of pulses, wherein the pulses within the group have a second frequency greater than or equal to 2000 Hz; and periodically applying the group of the pulses to the at least one electrode at the first frequency. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30)
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Specification