Neurostimulation titration process via adaptive parametric modification
First Claim
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1. A method of operating an implantable medical device (IMD) comprising a neurostimulator coupled to an electrode assembly, said method comprising:
- initiating a plurality of titration sessions, each titration session separated from an adjacent titration session by an acclimation interval, wherein the titration sessions comprise activating the IMD to deliver a stimulation signal of gradually increasing intensity until the patient exceeds a side effect tolerance zone boundary;
analyzing an outcome measure of the plurality of titration sessions, wherein the outcome measure comprises a target increase in stimulation intensity or a target increase in output current; and
modifying one or more stimulation parameters based on the analyzed outcome measure.
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Abstract
Systems and methods are provided for delivering neurostimulation therapies to patients. A titration process is used to gradually increase the stimulation intensity to a desired therapeutic level. Between titration sessions one or more parameters, such as, for example, an acclimation interval, may be adjusted based on the patient'"'"'s response to the stimulation. This personalized titration process can minimize the amount of time required to complete titration so as to begin delivery of the stimulation at therapeutically desirable levels.
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Citations
33 Claims
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1. A method of operating an implantable medical device (IMD) comprising a neurostimulator coupled to an electrode assembly, said method comprising:
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initiating a plurality of titration sessions, each titration session separated from an adjacent titration session by an acclimation interval, wherein the titration sessions comprise activating the IMD to deliver a stimulation signal of gradually increasing intensity until the patient exceeds a side effect tolerance zone boundary; analyzing an outcome measure of the plurality of titration sessions, wherein the outcome measure comprises a target increase in stimulation intensity or a target increase in output current; and modifying one or more stimulation parameters based on the analyzed outcome measure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method of operating an implantable medical device (IMD) comprising a neurostimulator coupled to an electrode assembly, said method comprising:
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initiating a plurality of titration sessions, each titration session separated from an adjacent titration session by an acclimation interval, wherein the titration sessions comprise activating the IMD to deliver a stimulation signal of gradually increasing intensity until the patient exceeds a side effect tolerance zone boundary; analyzing an outcome measure of the plurality of titration sessions; and modifying the acclimation interval based on the analyzed outcome measure, the modifying the acclimation interval comprising one or more of; increasing the acclimation interval in response to an outcome measure indicating slower than expected patient adaptation;
ordecreasing the acclimation interval before the subsequent titration session in response to an outcome measure indicating faster than expected patient adaptation.
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33. A method of operating an implantable medical device (IMD) comprising a neurostimulator coupled to an electrode assembly, said method comprising:
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initiating a plurality of titration sessions, each titration session separated from an adjacent titration session by an acclimation interval, wherein the titration sessions comprise activating the IMD to deliver a stimulation signal of gradually increasing intensity until the patient exceeds a side effect tolerance zone boundary; analyzing an outcome measure of the plurality of titration sessions; modifying one or more stimulation parameters based on the analyzed outcome measure; initiating an elevated stimulation session at an elevated stimulation intensity for a first period of time, the elevated stimulation intensity corresponding to a moderate side effect tolerance zone; and after the first period of time, initiating sustained stimulation at a sustained stimulation intensity for a second period of time, wherein the elevated stimulation intensity produces tolerable side effects and is greater than the sustained stimulation intensity.
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Specification