Direct Powering a Real Cardiac Pacemaker by Natural Energy of a Heartbeat
Implantable medical devices are widely used for monitoring and treatment of severe diseases.In particular,an implantable cardiac pacemaker is the most effective therapeutic device for treating bradyrhythmia,however its surgical replacement is inevitable every 5-12 years due to the limited life of the built-in battery.Although several approaches of energy harvesting have been explored in this decade for powering cardiac pacemakers,the modern,commercial,and full-function pacemaker has never been powered effectively yet.Here,we report an integrated strategy for directly powering a modern and full-function cardiac pacemaker,which can pace the porcine heart in vivo by harvesting the natural energy of a heartbeat,without using any external energy storage element.The generator includes an elastic skeleton and two piezoelectric composites,which could generate a high-output current of 15 μA in vivo over state-of-the-art performance.This study makes an impressive step toward fabricating a selfpowered cardiac pacemaker and resolving the power issue of implantable medical devices by piezoelectric harvesting technology.
Piezoelectric energy generator Implantable harvester Medical device Self-powered Cardiac kinetic energy PMN-PT Batteryless pacemaker
LI Ning YI Zhi-ran MA Ye XIE Feng HUANG Yue TIAN Ying-wei DONG Xiao-xue LIU Yang SHAO Xin LI Yang JIN Lei LIU Jing-quan XU Zhi-yun YANG Bin ZHANG Hao
Institute of Cardiothoracic Surgery at Changhai Hospital, Second Military Medical University, Shangh National Key Laboratory of Science and Technology on Micro/Nano Fabrication, Key Laboratory for Thin
国内会议
北京
英文
11-19
2020-11-01（万方平台首次上网日期，不代表论文的发表时间）