Finite element modeling of electromagnetic-coils targeting system for locating distal screw-hole in intramedullary interlocking-nail surgery

Ya Wen Cheng, Po Wen Chen, Tze Hong Wong, Chin Chung Chen, Wen-Syang Hsu, Tien-Kan Chung*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this paper, we report a finite element modeling of an electromagnetic-coils targeting system to locate a distal screw-hole in intramedullary interlocking-nail surgery. The system consists of an internal coil, external coil, and control/measurement electronics. The internal coil is embedded in a distal screw-hole of the nail inserted into the bone. A current is applied to the internal coil to produce a directional magnetic flux penetrating the nail/bone. Thus, the external coil scans different regions of the nail/bone will receive different amount of magnetic flux, and thereby produces different voltage outputs due to the electromagnetic induction. By analyzing the voltage outputs, the distal screw-hole is targeted. However, to precisely apply this system to many different nails for people in different regions, modification and optimization of the system are needed. For rapid modification and optimization, we implement finite element method to model the targeting system. Because the modeling results are qualitatively consistent to experimental results, the modeling is successfully validated to be able to qualitatively predict experimental trends and thereby can be used for rapid system modification and optimization.

Original languageEnglish
Title of host publicationASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment, ISPS-MIPE 2018
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791851937
DOIs
StatePublished - 14 Nov 2018
EventASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment, ISPS-MIPE 2018 - San Francisco, United States
Duration: 29 Aug 201830 Aug 2018

Publication series

NameASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment, ISPS-MIPE 2018

Conference

ConferenceASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment, ISPS-MIPE 2018
CountryUnited States
CitySan Francisco
Period29/08/1830/08/18

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