Modeling Induced AC Field Behavior and Parameter Optimization for Neurostimulation with an Implanted Rectifier
Biomedical Engineering
Jessica Miron
Abstract
It has been found that by implanting a diode into the body and applying a high frequency AC field in the area of the diode, precise, batteryless, and leadless peripheral nerve stimulation is possible. There has been minimal work on discovering the ideal configuration that can maximize stimulation while still being safe for patients.
Using COMSOL Multiphysics, a series of simulations were run to find the best configuration of diode length, diode depth, external electrode size, external electrode separation, tissue depth and AC frequency that is able to stimulate select regions of the body while ensuring tissue heating remains below safe maximum limits.