基于柔性智能器件的心动能量收集技术研究进展

Advances in energy harvesting from heartbeat using flexible smart devices: state-of-the-art review

植入式生物电子器件主要依靠需要频繁充电或者手术更换的电池进行供电,给病人带来健康风险和经济负担的双重压力.近年来利用柔性电子器件进行生物微能量收集得到广泛关注,特别是基于心动俘获的能量可为能耗10μW量级的生物电子器件持久供能.本综述简要回顾了传统刚性器件的心脏跳动能量收集方法,着重介绍近年来使用柔性压电器件进行心动能量收集的实验进展、理论建模分析与优化设计,最后展望该方向的未来发展趋势.

Implantable medical devices are mostly powered by battery that needs to be recharged or replaced frequently,resulting in the additional risk and economic burden on the patients.Harvesting the energy from the mechanical motion of biological organs using flexible electronics has attracted considerable research interest.The energy harvested from the heartbeat adequately provides sustainable power to these devices,whose energy consumption is approximately 10μW.Herein,we present a comprehensive review on the energy harvested from heartbeat through experiments and theoretical modeling,including the traditional strategies based on rigid solutions and most recent efforts on developing flexible piezoelectric devices.The research challenges and potential trends on this topic are also discussed.