抗线圈偏移与倾斜的人工肛门括约肌经皮能量传输系统  

Transcutaneous energy transfer system for artificial anal sphincter resistant to coil offset and rotation

作　　者：王立超[1,2] 颜国正 姜萍萍[1,2] 陈叶淋 Wang Lichao;Yan Guozheng;Jiang Pingping;Chen Yelin(School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Intelligent Drug Treatment and Rehabilitation Engineering Technology Research Center,Shanghai 200240,China)

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240 [2]上海智慧戒毒与康复工程技术研究中心,上海200240

出　　处：《仪器仪表学报》2024年第1期189-199,共11页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金(81971767,62273225,61673271,62103267);上海市自然科学基金(21ZR1429900)项目资助。

摘　　要：传统的经皮能量传输系统大多采用开环系统,充电过程中患者要尽量保持不动,否则会导致线圈错位或翻转,影响接收功率导致不能正常充电。针对上述问题,本文首先采用LCC-S拓扑结构实现了接收端恒压特征,然后基于互感估计和原边功率补偿的方法实时调节发射端发射功率对接收端电压进行控制。仿真和体外实验结果显示,该系统可以使得接收端输出电压在锂电池整个充电过程中恒定不变;该系统可以允许接收线圈在轴向偏移25 mm内、横向偏移22 mm内、翻转角度80°内进行有限姿态变化,使得患者可以在充电过程中适量运动,大大提高了经皮能量传输系统的稳定性与可靠性,对人工肛门括约肌系统的进一步应用有重要意义。Many conventional transdermal energy transmission systems are designed as open-loop systems.It is crucial for patients to maintain stillness during the charging process since any movement can lead to misalignment or flipping of the coil.This can adversely affect the power received and disrupt the normal charging procedure.Regarding the above-mentioned issues,the LCC-S topology was used to achieve constant voltage characteristics at the receiver end.Then,a method based on mutual inductance estimation and primary-side power compensation was employed to dynamically adjust the transmit power at the transmitter end and effectively control the voltage at the receiver end.The simulation and in vitro experimental results demonstrate that this system can maintain a constant output voltage at the receiving end throughout the entire charging process of the lithium battery.The system allows for limited positional changes of the receiving coil,including axial displacement within 25 mm,lateral displacement within 22 mm,and rotation within an angle of 80°.This enables patients to engage in moderate movement during the charging process,greatly improving the stability and reliability of the transcutaneous energy transfer system.It has significant implications for the further application of artificial anal sphincter systems.

关 键 词：人工肛门括约肌 经皮能量传输 闭环控制 线圈偏移与倾斜 

分 类 号：TH772[机械工程—仪器科学与技术]