標題: Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy
作者: Chen, Chin-Chung
Lin, Ching-Kai
Chang, Chen-Wei
Cheng, Yun-Chien
Chen, Jia-En
Tsai, Sung-Lin
Chung, Tien-Kan
機械工程學系
國際半導體學院
Department of Mechanical Engineering
International College of Semiconductor Technology
關鍵字: passive magnetic-flux concentrator;magnetic;electromagnetic;targeting;tracking;locating;endobronchoscope;endoscope;lung cancer tumor;lesion
公開日期: 1-Dec-2019
摘要: In this paper, we demonstrate an innovative electromagnetic targeting system utilizing a passive magnetic-flux-concentrator for tracking endobronchoscope used in the diagnosis process of lung cancer tumors/lesions. The system consists of a magnetic-flux emitting coil, a magnetic-flux receiving electromagnets-array, and high permeability silicon-steel sheets rolled as a collar (as the passive magnetic-flux-concentrator) fixed in a guide sheath of an endobronchoscope. The emitting coil is used to produce AC magnetic-flux, which is consequently received by the receiving electromagnets-array. Due to the electromagnetic-induction, a voltage is induced in the receiving electromagnets-array. When the endobronchoscope's guide sheath (with the silicon-steel collar) travels between the emitting coil and the receiving electromagnets-arrays, the magnetic flux is concentrated by the silicon-steel collar and thereby the induced voltage is changed. Through analyzing the voltage-pattern change, the location of the silicon-steel collar with the guide sheath is targeted. For testing, a bronchial-tree model for training medical doctors and operators is used to test our system. According to experimental results, the system is successfully verified to be able to target the endobronchoscope in the bronchial-tree model. The targeting errors on the x-, y- and z-axes are 9 mm, 10 mm, and 5 mm, respectively.
URI: http://dx.doi.org/10.3390/s19235105
http://hdl.handle.net/11536/153765
DOI: 10.3390/s19235105
期刊: SENSORS
Volume: 19
Issue: 23
起始頁: 0
結束頁: 0
Appears in Collections:Articles