Triboelectric energy generators for self-powered medical implants

Introduction

Based on intense research efforts in the fields of technology development and materials science, a new generation of medical devices has flourished. But this medical technology still relies on conventional energy sources (bulky batteries). These batteries typically have shorter lifetimes than the implant itself, meaning limitations on patients' activities, infections, and additional surgeries.

Ideal Scenario

In an ideal scenario, active implantable medical devices (AIMDs) would be powered using integrated and fully implantable energy suppliers, not needing to be recharged or replaced. An integrated implantable energy harvesting device to power AIMDs is the crucial missing component that would unlock this future.

Project Overview

TriboMed aims to implement triboelectric energy generators (TENGs) for powering AIMDs, taking vagus nerve stimulation (VNS) as proof-of-concept. I will show that TENGs can be produced at a larger scale, while being miniaturized and tuned, supplying energy levels suitable for driving stimulation implants.

Development Goals

By coupling to a supercapacitor, I aim to develop a fully integrated energy-autonomous VNS implant on a conformable and biocompatible substrate. My approach is timely and innovative because it responds to the increasing needs of energy harvesting and comes when the maturity level reached by thin films technologies allows us to start working on device integration.

Background and Expertise

My background in materials science and my current experience in device technology provide me with the tools necessary for the successful development of TriboMed. I have the privilege to be working at the forefront of biomedical research, affording insight into the latest achievements and emerging requirements of VNS technology.

Future Impact

TriboMed will unlock the use of triboelectricity for feeding other AIMDs and beyond, on the Internet of Things. Turning the medical implants into self-powered systems will broaden the acceptance of neuromodulation therapies, with a life-changing impact on a very large patient population.