Human motion to recharge implantable devices

Abstract

This paper discusses the ability to generate energy from the human body without using any external power source by using a piezo-element sensor. The replacement procedure of the batteries in implantable medical devices may apply risk to the patient's life, to avoid this risk many methods exist one of them is proposed in this work. The piezo-element is designed to be attached into the patient's shoes and while the patient is walking energy is generated from the pressure applied on the sensor. The generated energy is then harvested by using the MAX1675, the CLC filter, and the voltage regulator. The harvested energy is transmitted to charge the battery of an implantable medical device. Transmission takes place wirelessly with causing minimal risk to the patients' life. The achieved results in this work prove that the idea of wirelessly charging an implantable medical device with moderate economical expenses is applicable. The results are promising and need more improvement.