用于人工肛门括约肌的经皮能量线圈耦合分析

Lei KE; Guo-zheng YAN; Sheng YAN; Zhi-wu WANG; Da-sheng LIU

doi:10.1631/jzus.C1400062

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用于人工肛门括约肌的经皮能量线圈耦合分析

电气工程 | Updated：2022-05-19

- 用于人工肛门括约肌的经皮能量线圈耦合分析
- Coupling analysis of transcutaneous energy transfer coils with planar sandwich structure for a novel artificial anal sphincter
- 信息与电子工程前沿（英文） 2014年15卷第11期页码：1021-1034
- Affiliations：
  
  Institute of Medical Precision Engineering and Intelligent Systems, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- Author bio：
  
  [ "Lei KE, E-mail: suda_kelei@163.com" ]
- Funds：
  
  Project supported by the National Natural Science Foundation of China (No. 31170968)
- DOI：10.1631/jzus.C1400062
  中图分类号： TM15
- 收稿：2014-02-24，
  
  修回：2014-10-16，
  
  纸质出版：2014-11
- Accepted：
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用于人工肛门括约肌的经皮能量线圈耦合分析[J]. 信息与电子工程前沿（英文）, 2014,15(11):1021-1034.

Lei KE, Guo-zheng YAN, Sheng YAN, et al. Coupling analysis of transcutaneous energy transfer coils with planar sandwich structure for a novel artificial anal sphincter[J]. Frontiers of Information Technology & Electronic Engineering, 2014, 15(11): 1021-1034.
用于人工肛门括约肌的经皮能量线圈耦合分析[J]. 信息与电子工程前沿（英文）, 2014,15(11):1021-1034. DOI： 10.1631/jzus.C1400062.

Lei KE, Guo-zheng YAN, Sheng YAN, et al. Coupling analysis of transcutaneous energy transfer coils with planar sandwich structure for a novel artificial anal sphincter[J]. Frontiers of Information Technology & Electronic Engineering, 2014, 15(11): 1021-1034. DOI： 10.1631/jzus.C1400062.

摘要

研究目的

建模分析用于经皮能量传输的三种不同结构平面线圈间的耦合电磁场分布，特别是平面铁氧体磁片对空心线圈自感和互感参数的附加影响。

创新要点

对平面螺旋线圈间的耦合电磁场模型进行了详细的理论分析，分别对比了三种结构线圈（图2）的自感、互感和耦合强度，得出铁氧体磁片对线圈自身参数的影响，为参数化设计方法奠定理论基础。

研究方法

首先，简单介绍了应用主体新型人工肛门括约肌的研究进展。然后，对文中提出的三种不同结构线圈对间的电磁场分布进行理论建模，得到线圈参数与线圈自感和互感的相互作用关系。最后，针对实际制作的不同结构的线圈（表1，2），分别使用实验、有限元分析和模型公式计算方法对上述理论公式进行交叉验证和对比（图7–12）。

重要结论

夹层式平面螺旋线圈间的耦合强度最优，其大小与股数成正比，与线圈间距成反比，并且铁氧体磁片存在最优厚度和相对磁导率使其对耦合因子的增强效果最佳。

Abstract

This paper presentsa set of analytical expressions used to determine the coupling coefficientbetween primary and secondary Litz-wire planar coils used in a transcutaneousenergy transfer (TET) system. A TET system has been designed to power a novelelastic scaling artificial anal sphincter system (ES-AASS) for treating severe fecal incontinence (FI)

acondition that would benefit from an optimized TET. Expressions that describethe geometrical dimension dependence of self- and mutual inductances of planar coilson a ferrite substrate are provided. The effects of ferrite substrate conductivity

relative permeability

and geometrical dimensions are also considered. To verify these expressions

mutual coupling between planar coils is computed by 3D finite element analysis(FEA)

and the proposed expressions show good agreement with numerical results. Different types of planar coils arefabricated with or withoutferrite substrate. Measured results for each of the cases are compared withtheoretical predictions and FEA solutions.The theoretical results and FEA results are in good agreement with the experimentaldata.

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references

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