Dynamic cranial nerve stimulation based on brain state determination from cardiac data
First Claim
1. An medical device comprising:
- a cardiac data sensing module operable to sense cardiac data;
a value setting module operable to set a first cardiac threshold value and dynamically adjust the first cardiac threshold value based upon sensed cardiac data from the cardiac sensing module;
a cardiac module operable to determine a first cardiac parameter based upon sensed cardiac data from the cardiac sensing module;
an unstable brain state declaration module operable to declare a seizure when the first cardiac parameter exceeds the first cardiac threshold value.
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Abstract
A method of treating a medical condition in a patient using an implantable medical device, comprising providing an electrical signal generator; providing at least a first electrode operatively coupled to the electrical signal generator and to a vagus nerve of the patient; sensing cardiac data of the patient; determining at least a first cardiac parameter based upon said cardiac data; setting at least a first value; declaring an unstable brain state of a patient from said at least a first cardiac parameter and said at least a first value; and adjusting the at least a first value. Also, a computer readable program storage device encoded with instructions that, when executed by a computer, performs the method. In addition, the implantable medical device used in the method.
383 Citations
20 Claims
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1. An medical device comprising:
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a cardiac data sensing module operable to sense cardiac data; a value setting module operable to set a first cardiac threshold value and dynamically adjust the first cardiac threshold value based upon sensed cardiac data from the cardiac sensing module; a cardiac module operable to determine a first cardiac parameter based upon sensed cardiac data from the cardiac sensing module; an unstable brain state declaration module operable to declare a seizure when the first cardiac parameter exceeds the first cardiac threshold value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of declaring a seizure using a medical device, comprising:
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sensing cardiac data; setting a first cardiac threshold value based upon the sensed cardiac data; dynamically adjusting the first cardiac threshold value based upon the sensed cardiac data; determining a first cardiac parameter based upon the sensed cardiac data; and declaring a seizure in response to the first cardiac parameter exceeding the first cardiac threshold value. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification