Implantable neurostimulator-implemented method for managing bradycardia through vagus nerve stimulation
First Claim
1. An implantable neurostimulator for managing bradycardia through vagus nerve stimulation, comprising:
- an implantable neurostimulator configured to deliver electrical therapeutic stimulation in a manner that results in creation and propagation in both afferent and efferent directions of action potentials within neuronal fibers comprising a cervical vagus nerve of a patient, further comprising;
an internal recordable memory configured to store an operating mode of a pulse generator, comprising parametrically defining maintenance doses of the electrical therapeutic stimulation tuned to restore cardiac autonomic balance through continuously-cycling, intermittent and periodic electrical pulses;
the pulse generator configured to therapeutically deliver the maintenance doses to the vagus nerve through a pair of helical-electrodes via an electrically coupled nerve stimulation therapy lead independent of cardiac cycle;
a physiological sensor configured to monitor the patient'"'"'s physiology, and upon sensing with the physiological sensor a condition indicative of bradycardia, suspend the delivery of the maintenance doses by the pulse generator to the vagus nerve; and
a controller configured to wait a progressively increasing amount of time, each progressively increasing amount of time having a time period greater than a time period of an initial delay, and, upon sensing a condition indicative of an absence or termination of the bradycardia after suspension of the delivery of the maintenance doses, resume delivery of progressively increasing partial maintenance doses to the vagus nerve via the pulse generator, each progressively increasing partial maintenance dose having a duty cycle less than a duty cycle of a full maintenance dose.
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Accused Products
Abstract
A method for managing bradycardia through vagus nerve stimulation is provided. An implantable neurostimulator configured to deliver electrical therapeutic stimulation in both afferent and efferent directions of a patient'"'"'s cervical vagus nerve is provided. An operating mode is stored, which includes parametrically defining a maintenance dose of the electrical therapeutic stimulation tuned to restore cardiac autonomic balance through continuously-cycling, intermittent and periodic electrical pulses. The maintenance dose is delivered via a pulse generator through a pair of helical electrodes via an electrically coupled nerve stimulation therapy lead independent of cardiac cycle. The patient'"'"'s physiology is monitored, and upon sensing a condition indicative of bradycardia, the delivery of the maintenance dose is suspended. A progressively increasing amount of time is spent waiting via a controller and, upon sensing a condition indicative of an absence or termination of the bradycardia, a progressively increasing partial maintenance dose is delivered via the pulse generator.
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Citations
17 Claims
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1. An implantable neurostimulator for managing bradycardia through vagus nerve stimulation, comprising:
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an implantable neurostimulator configured to deliver electrical therapeutic stimulation in a manner that results in creation and propagation in both afferent and efferent directions of action potentials within neuronal fibers comprising a cervical vagus nerve of a patient, further comprising; an internal recordable memory configured to store an operating mode of a pulse generator, comprising parametrically defining maintenance doses of the electrical therapeutic stimulation tuned to restore cardiac autonomic balance through continuously-cycling, intermittent and periodic electrical pulses; the pulse generator configured to therapeutically deliver the maintenance doses to the vagus nerve through a pair of helical-electrodes via an electrically coupled nerve stimulation therapy lead independent of cardiac cycle; a physiological sensor configured to monitor the patient'"'"'s physiology, and upon sensing with the physiological sensor a condition indicative of bradycardia, suspend the delivery of the maintenance doses by the pulse generator to the vagus nerve; and a controller configured to wait a progressively increasing amount of time, each progressively increasing amount of time having a time period greater than a time period of an initial delay, and, upon sensing a condition indicative of an absence or termination of the bradycardia after suspension of the delivery of the maintenance doses, resume delivery of progressively increasing partial maintenance doses to the vagus nerve via the pulse generator, each progressively increasing partial maintenance dose having a duty cycle less than a duty cycle of a full maintenance dose. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An implantable neurostimulator-implemented method for managing bradycardia through vagus nerve stimulation, comprising the steps of:
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providing an implantable neurostimulator comprising a pulse generator and a recordable memory configured to deliver electrical therapeutic stimulation in a manner that results in creation and propagation in both afferent and efferent directions of action potentials within neuronal fibers comprising; storing an operating mode of the pulse generator, comprising parametrically defining maintenance doses of the electrical therapeutic stimulation tuned to restore cardiac autonomic balance through continuously-cycling, intermittent and periodic electrical pulses; therapeutically delivering the maintenance doses to the vagus nerve via a the pulse generator comprised in the implantable neurostimulator through a pair of helical electrodes via an electrically coupled nerve stimulation therapy lead independent of cardiac cycle; monitoring the patient'"'"'s physiology via a physiological sensor comprised in the implantable neurostimulator, and upon sensing a condition indicative of bradycardia, suspending the delivery of the maintenance doses by the pulse generator to the vagus nerve; and waiting a progressively increasing amount of time via a controller comprised in the implantable neurostimulator, each progressively increasing amount of time having a time period greater than a time period of an initial delay and, upon sensing a condition with the physiological sensor indicative of an absence or termination of bradycardia after suspension of the delivery of maintenance doses, resuming delivery of progressively increasing partial maintenance doses to the vagus nerve via the pulse generator, each progressively increasing partial maintenance dose having a duty cycle less than a duty cycle of a full maintenance dose. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification