Vagus nerve stimulation responsive to a tachycardia precursor
First Claim
1. A method performed using a vagus nerve stimulator that includes a pulse generator configured to generate a pulsed electrical circuit comprising an ON time, an OH time, an amplitude, a frequency, a pulse width and a duty cycle, includes a lead with an electrode electrically connected to the pulse generator, and includes a controller, the method comprising:
- storing stimulation parameters in a memory of the vagus nerve neurostimulator;
controlling the pulse generator, using the controller and stored stimulation parameters, to deliver neurostimulation to a vagus nerve before detection of a precursor to a tachycardia, wherein deliver neurostimulation includes deliver the electrical therapeutic stimulation to the vagus nerve to provide therapeutic effects for a cardiac therapy at an intensity that avoids physiological side effects, wherein the deliver the electrical therapeutic stimulation includes deliver neurostimulation pulses in bursts, wherein the bursts are delivered during the ON time and are not delivered during the OFF time, and wherein the pulses have a pulse frequency and the bursts have a burst frequency; and
use the controller to detect the precursor and respond to the detected precursor by temporarily changing an intensity of the delivered neurostimulation for the cardiac therapy.
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Abstract
A vagus nerve neurostimulator may comprise a pulse generator, a lead and a controller. The pulse generator may be configured to generate a pulsed electrical signal comprising an ON time, an OFF time, an amplitude, a frequency, a pulse width, and a duty cycle. The lead may be electrically connected to the pulse generator. The pulse generator may be configured to cooperate with the lead to apply an electrical signal from the pulse generator to the vagus nerve to provide therapeutic effects for a neurostimulation therapy at an intensity that avoids physiological side effects. The controller may be configured to use stored parameters in a memory to deliver neurostimulation to the vagus nerve before detection of a precursor to a tachycardia, detect the precursor, and respond to the detected precursor by temporarily changing an intensity of the delivered neurostimulation.
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Citations
20 Claims
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1. A method performed using a vagus nerve stimulator that includes a pulse generator configured to generate a pulsed electrical circuit comprising an ON time, an OH time, an amplitude, a frequency, a pulse width and a duty cycle, includes a lead with an electrode electrically connected to the pulse generator, and includes a controller, the method comprising:
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storing stimulation parameters in a memory of the vagus nerve neurostimulator; controlling the pulse generator, using the controller and stored stimulation parameters, to deliver neurostimulation to a vagus nerve before detection of a precursor to a tachycardia, wherein deliver neurostimulation includes deliver the electrical therapeutic stimulation to the vagus nerve to provide therapeutic effects for a cardiac therapy at an intensity that avoids physiological side effects, wherein the deliver the electrical therapeutic stimulation includes deliver neurostimulation pulses in bursts, wherein the bursts are delivered during the ON time and are not delivered during the OFF time, and wherein the pulses have a pulse frequency and the bursts have a burst frequency; and use the controller to detect the precursor and respond to the detected precursor by temporarily changing an intensity of the delivered neurostimulation for the cardiac therapy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vagus nerve neurostimulator, comprising:
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a pulse generator configured for use to deliver neurostimulation to a vagus nerve, wherein the pulse generator is configured to generate a pulsed electrical signal comprising an ON time, an OFF time, an amplitude, a frequency, a pulse width, and a duty cycle; a lead with an electrode electrically connected to the pulse generator, wherein the pulse generator is configured to cooperate with the lead to apply an electrical signal from the pulse generator to the vagus nerve to provide therapeutic effects for a neurostimulation therapy at an intensity that avoids physiological side effects; and a controller configured to use stored parameters in a memory to deliver neurostimulation to the vagus nerve before detection of a precursor to a tachycardia, detect the precursor, and respond to the detected precursor by temporarily changing an intensity of the delivered neurostimulation. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification