Treatment of congestive heart failure and autonomic cardiovascular drive disorders
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United States of America Patent
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Sep 16, 2003
Grant Date -
Feb 27, 2003
app pub date -
Aug 21, 2001
filing date -
Aug 21, 2001
priority date (Note) -
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Abstract
A device for treating patients suffering from congestive heart failure includes an implantable neurostimulator for stimulating the patient's vagus nerve at or above the cardiac branch with an electrical pulse waveform at a stimulating rate sufficient to maintain the patient's heart beat at a rate well below the patient's normal resting heart rate, thereby allowing rest and recovery of the heart muscle, to increase in coronary blood flow, and/or growth of coronary capillaries. A metabolic need sensor detects the patient's current physical state and concomitantly supplies a control signal to the neurostimulator to vary the stimulating rate. If the detection indicates a state of rest, the neurostimulator rate reduces the patient's heart rate below the patient's normal resting rate. If the detection indicates physical exertion, the neurostimulator rate increases the patient's heart rate above the normal resting rate.
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