Method and apparatus for optimizing vagal nerve stimulation using laryngeal activity
First Claim
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1. A neural stimulation system for applying neural stimulation to a body having a neck, a larynx, and a vagus nerve, the system comprising:
- an activity sensor adapted to sense a signal indicative of laryngeal activity;
a laryngeal activity sensor assembly including a neck-bracing structure configured to hold the activity sensor on the neck over the larynx; and
a neural stimulation analyzer communicatively coupled to the activity sensor, the neural stimulation analyzer including;
a laryngeal activity input to receive the signal indicative of laryngeal activity;
a neural stimulation input to receive a signal indicative of a delivery of the neural stimulation to the vagus nerve; and
a processing circuit coupled to the laryngeal activity input and the neural stimulation input, the processing circuit configured to process the signal indicative of laryngeal activity for analyzing the neural stimulation system using the signal indicative of laryngeal activity.
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Abstract
A neural stimulation system delivers neural stimulation to the vagus nerve and senses a signal indicative of laryngeal activity resulting from the neural stimulation. The signal indicative of laryngeal activity is used, for example, to guide electrode placement, determine stimulation threshold, detect lead/electrode problems, detect neural injury, and monitor healing processing following the electrode placement inside the body of a patient.
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Citations
39 Claims
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1. A neural stimulation system for applying neural stimulation to a body having a neck, a larynx, and a vagus nerve, the system comprising:
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an activity sensor adapted to sense a signal indicative of laryngeal activity; a laryngeal activity sensor assembly including a neck-bracing structure configured to hold the activity sensor on the neck over the larynx; and a neural stimulation analyzer communicatively coupled to the activity sensor, the neural stimulation analyzer including; a laryngeal activity input to receive the signal indicative of laryngeal activity; a neural stimulation input to receive a signal indicative of a delivery of the neural stimulation to the vagus nerve; and a processing circuit coupled to the laryngeal activity input and the neural stimulation input, the processing circuit configured to process the signal indicative of laryngeal activity for analyzing the neural stimulation system using the signal indicative of laryngeal activity. - View Dependent Claims (2)
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3. A neural stimulation system for applying neural stimulation to a body having a neck, a larynx, and a vagus nerve, the system comprising:
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an activity sensor adapted to sense a signal indicative of laryngeal activity; a laryngeal activity sensor assembly including the activity sensor and a neck brace configured to wrap around a portion of the neck; and a neural stimulation analyzer communicatively coupled to the activity sensor, the neural stimulation analyzer including; a laryngeal activity input to receive the signal indicative of laryngeal activity; a neural stimulation input to receive a signal indicative of a delivery of the neural stimulation to the vagus nerve; and a processing circuit coupled to the laryngeal activity input and the neural stimulation input, the processing circuit configured to process the signal indicative of laryngeal activity for analyzing the neural stimulation system using the signal indicative of laryngeal activity. - View Dependent Claims (4, 5, 6)
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7. A neural stimulation system for applying neural stimulation to a body having a neck, a larynx, and a vagus nerve, the system comprising:
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an activity sensor adapted to sense a signal indicative of laryngeal activity; and a neural stimulation analyzer communicatively coupled to the activity sensor, the neural stimulation analyzer including; a laryngeal activity input to receive the signal indicative of laryngeal activity; a neural stimulation input to receive a signal indicative of a delivery of the neural stimulation to the vagus nerve; a signal conditioning circuit adapted to increase a signal-to-noise ratio of the signal indicative of laryngeal activity, the signal including components of the signal indicative of laryngeal activity resulting from the neural stimulation; and a processing circuit coupled to the laryngeal activity input and the neural stimulation input, the processing circuit configured to process the signal indicative of laryngeal activity for analyzing the neural stimulation system using the signal indicative of laryngeal activity. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A neural stimulation system for applying neural stimulation to a body having a neck, a larynx, and a vagus nerve, the system comprising:
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an activity sensor adapted to sense a signal indicative of laryngeal activity; a laryngeal activity sensor assembly configured to hold the activity sensor on the neck over the larynx; a signal conditioning circuit, communicatively coupled to the activity sensor, to condition the signal indicative of laryngeal activity; a neural stimulation circuit adapted to deliver the neural stimulation to the vagus nerve; and a presentation device coupled to the signal conditioning circuit and the neural stimulation circuit, the presentation device adapted to present indicators of the laryngeal activity and the delivery of the neural stimulation. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method for applying neural stimulation to a body having a neck, a larynx, and a vagus nerve, the method comprising:
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sensing a signal indicative of laryngeal activity; delivering the neural stimulation to the vagus nerve; conditioning the signal indicative of laryngeal activity to isolate laryngeal activity resulting from the delivery of the neural stimulation; and presenting indicators of the laryngeal activity. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification