Implantable Electroacupuncture Device and Method for Treating Cardiovascular Disease (US 8,938,297 B2)


An implantable electroacupuncture device (IEAD) treats heart failure, coronary artery disease, myocardial ischemia or angina through application of stimulation pulses applied at acupoints GV20 and/or EXHN3. The IEAD comprises an implantable, coin-sized, self-contained, leadless electroacupuncture device having at least two electrodes attached to an outside surface of its housing. The device generates stimulation pulses in accordance with a specified stimulation regimen. Power management circuitry within the device allows a primary battery, having a high internal impedance, to be used to power the device. The stimulation regimen generates stimulation pulses during a stimulation session of duration T3 minutes applied every T4 minutes. The duty cycle, or ratio of T3/T4, is very low, no greater than 0.05. The low duty cycle and careful power management allow the IEAD to perform its intended function for several years.

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