The Effect of Electrode Distance on the Voltage Distribution during Non-invasive Vagus Nerve Stimulation – a Preliminary Study

The non-invasive vagus nerve stimulator is a medical device that attaches electrodes to the neck and stimulates the vagus nerve at a depth of about 3.4 cm from the skin of the neck. In the development of the vagus nerve stimulator, the distance between the electrodes is an important design factor for the effective delivery of electrical stimulation. This study is a preliminary study to determine the distance between the electrodes of the vagus nerve stimulator. The voltage was measured by inserting a needle electrode at a distance of 3.4 cm from the surface while increasing the distance between the electrodes attached to the biomaterial surface from 3 cm to 7 cm.