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US 7,561,923 B2Granted
Method and apparatus for controlling autonomic balance using neural stimulation
AssigneeCardiac Pacemakers, Inc.
InventorsImad Libbus, Andrew P. Kramer, Julio C. Spinelli
Life of this patent
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Abstract
A neural stimulation system senses autonomic activities and applies neural stimulation to sympathetic and parasympathetic nerves to control autonomic balance. The neural stimulation system is capable of delivering neural stimulation pulses for sympathetic excitation, sympathetic inhibition, parasympathetic excitation, and parasympathetic inhibition.
Claims21
A neural stimulation system for stimulating at least a sympathetic nerve and a parasympathetic nerve, the system comprising:
- a stimulation output circuit adapted to deliver stimulation pulses including sympathetic stimulation pulses delivered to the sympathetic nerve at a sympathetic stimulation frequency and parasympathetic stimulation pulses delivered to the parasympathetic nerve at a parasympathetic stimulation frequency;
- an autonomic balance monitoring circuit adapted to sense one or more signals indicative of autonomic activities;
- and
- a stimulation control circuit coupled to the stimulation output circuit and the autonomic balance monitoring circuit, the stimulation control circuit including:
- a sympathetic stimulation controller adapted to adjust the sympathetic stimulation frequency to control whether the delivery of the sympathetic stimulation pulses results in excitation or inhibition of the sympathetic nerve;
- and
- a parasympathetic stimulation controller adapted to adjust the parasympathetic stimulation frequency to control whether the delivery of the parasympathetic stimulation pulses results in excitation or inhibition of the parasympathetic nerve.
4 more elements
Dependencies are inferred from the claim text.