Patent ID: 7873413
Filing Date: 2011-01-18
Classification: A61N

Abstract:
1. A system, comprising: a reference event detection circuit configured to receive an input from a reference signal sensor and generate a synchronization control signal using a detected cardiac activity event; a feedback detection circuit configured to receive an input from at least one feedback sensor and generate a feedback control signal, wherein the at least one feedback sensor is configured to sense cardiac activity including heart rate, and; a stimulation control circuit configured to generate a stimulation control signal, the stimulation control circuit including a synchronization circuit responsive to the synchronization control signal to time the stimulation control signal, the stimulation control circuit further including a therapy titration circuit responsive to the feedback control signal to adjust the stimulation control signal; and a stimulation output circuit responsive to the stimulation control signal from the stimulation control circuit and configured to generate a neural stimulation signal for use in stimulating at least one autonomic neural target, wherein the stimulation control circuit is configured to receive sensed heart rate from the feedback detection circuit before controlling the stimulation output circuit to generate the neural stimulation signal, to control the stimulation output circuit to generate the neural stimulation signal, and to titrate the neural stimulation signal to maintain heart rate, and wherein the stimulation control circuit is configured to change a stimulation vector to maintain heart rate.