Fractionalized stimulation pulses in an implantable stimulator device
First Claim
1. An implantable stimulator device (ISD) configured to provide stimulation between at least a first electrode and a second electrode, comprising:
- logic configured to define a group of a plurality of constant current pulses in a single timing channel, wherein the pulses are either only anodic or only cathodic, and 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 the first electrode at a first frequency, wherein the second electrode comprises the other of an anode or cathode compared to the pulses in the group.
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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.
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Citations
62 Claims
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1. An implantable stimulator device (ISD) configured to provide stimulation between at least a first electrode and a second electrode, comprising:
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logic configured to define a group of a plurality of constant current pulses in a single timing channel, wherein the pulses are either only anodic or only cathodic, and 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 the first electrode at a first frequency, wherein the second electrode comprises the other of an anode or cathode compared to the pulses in the group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing stimulation between at least a first electrode and a second electrode of an implantable stimulator device (ISD), comprising:
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constructing in the ISD a group of a plurality of constant current pulses that are either only anodic or only cathodic, wherein a second frequency of the pulses within the group is greater than or equal to 2000 Hz; and periodically applying the group of the pulses to the first electrode of the ISD at a first frequency, wherein the periodically-applied group of the pulses is constructed in a single timing channel, and wherein the second electrode comprises the other of an anode or cathode compared to the pulses in the group. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. An implantable stimulator device (ISD) configured to provide stimulation between at least a first electrode and a second electrode, comprising:
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logic configured to define; a group of a plurality of constant current pulses that are either only anodic or only cathodic, wherein the pulses within the group have a second frequency greater than or equal to 2000 Hz; and a time between consecutive applications of the group during which the pulses are not applied to the first electrode, wherein the time establishes a first frequency at which the group of the pulses is to be periodically applied to the first electrode; and source or sink circuitry configured to periodically apply the group of the pulses to the first electrode at the first frequency, wherein the second electrode comprises the other of an anode or cathode compared to the pulses in the group. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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36. A method for providing stimulation between at least a first electrode and a second electrode of an implantable stimulator device (ISD), comprising:
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constructing in the ISD a group of a plurality of constant current pulses that are either only anodic or only cathodic, wherein a second frequency of the pulses within the group is greater than or equal to 2000 Hz; and periodically applying the group of the pulses to the first electrode of the ISD at a first frequency, wherein the second electrode comprises the other of an anode or cathode compared to the pulses in the group, wherein current source circuitry is coupled to the anodic one of the first and second electrodes, and wherein current sink circuitry is coupled to the cathodic one of the first and second electrodes. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A method for providing stimulation between at least a first electrode and a second electrode of an implantable stimulator device (ISD), comprising:
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constructing in the ISD a group of a plurality of constant current pulses that are either only anodic or only cathodic, wherein a second frequency of the pulses within the group is greater than or equal to 2000 Hz; and periodically applying the group of the pulses to the first electrode of the ISD at a first frequency, wherein the group of the pulses is periodically applied to the first electrode with a time between consecutive applications of the group during which the pulses are not applied, and wherein the second electrode comprises the other of an anode or cathode compared to the pulses in the group. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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Specification