Energy Harvesting Techniques for Long-Term Self-Powered Deep Brain Stimulation Systems: A Comprehensive Analysis

Deep brain stimulation (DBS) systems have emerged as promising therapy for various neurological disorders, providing means to deliver electrical stimulation directly to targeted regions of the brain. However, the long-term sustainability of these systems is a significant challenge, as the implanted power sources have limited lifetime. Self-energy harvesting through the human body and ambient environment shows promising solutions for this issue. Therefore, this paper explores alternative power sources for DBS systems through a comprehensive analysis of different energy harvesting techniques. Harvesting approach, power output, biocompatibility, limitations, and promising future research avenues are explored while proposing solutions to enhance energy harvesting efficiency for long-term, self-powered DBS systems. This comprehensive analysis paves the way for advancements in self-powered DBS technology, promoting a more patient-centric and sustainable approach to treating neurological conditions.