Contingent cardio-protection for epilepsy patients
First Claim
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1. A medical system comprising:
- a first electrode configured to be coupled to a main trunk of a vagus nerve of a patient;
a second electrode configured to be coupled to a cardiac branch of the vagus nerve of the patient;
an electrical signal generator coupled to the first electrode and the second electrode; and
one or more processors configured to;
receive at least one body data stream;
analyze the at least one body data stream using a seizure detection algorithm to determine an epileptic seizure state;
apply a first electrical signal from the electrical signal generator to the main trunk of the vagus nerve using the first electrode as a cathode, based on a first determination that the epileptic seizure state of the patient is a first state where an epileptic seizure is not detected; and
apply a second electrical signal from the electrical signal generator to the cardiac branch of the vagus nerve using the second electrode as the cathode, based on a second determination that the epileptic seizure state of the patient is a second state where the epileptic seizure is detected.
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Abstract
Disclosed are methods and systems for treating epilepsy by stimulating a main trunk of a vagus nerve, or a left vagus nerve, when the patient has had no seizure or a seizure that is not characterized by cardiac changes such as an increase in heart rate, and stimulating a cardiac branch of a vagus nerve, or a right vagus nerve, when the patient has had a seizure characterized by cardiac changes such as a heart rate increase.
549 Citations
13 Claims
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1. A medical system comprising:
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a first electrode configured to be coupled to a main trunk of a vagus nerve of a patient; a second electrode configured to be coupled to a cardiac branch of the vagus nerve of the patient; an electrical signal generator coupled to the first electrode and the second electrode; and one or more processors configured to; receive at least one body data stream; analyze the at least one body data stream using a seizure detection algorithm to determine an epileptic seizure state; apply a first electrical signal from the electrical signal generator to the main trunk of the vagus nerve using the first electrode as a cathode, based on a first determination that the epileptic seizure state of the patient is a first state where an epileptic seizure is not detected; and apply a second electrical signal from the electrical signal generator to the cardiac branch of the vagus nerve using the second electrode as the cathode, based on a second determination that the epileptic seizure state of the patient is a second state where the epileptic seizure is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification