https://scholars.lib.ntu.edu.tw/handle/123456789/552148
標題: | Passive magnetic-flux-concentrator based electromagnetic targeting system for endobronchoscopy | 作者: | Chen C.-C. CHING-KAI LIN Chang C.-W. Cheng Y.-C. Chen J.-E. Tsai S.-L. Chung T.-K. |
關鍵字: | Electromagnetic; Endobronchoscope; Endoscope; Locating; Lung cancer tumor/lesion; Magnetic; Passive magnetic-flux concentrator; Targeting; Tracking | 公開日期: | 2019 | 出版社: | MDPI AG | 卷: | 19 | 期: | 23 | 起(迄)頁: | 5105 | 來源出版物: | Sensors (Switzerland) | 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. ? 2019 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85075403588&doi=10.3390%2fs19235105&partnerID=40&md5=ecd9c3d01919e44a47735d04d7ddf27c https://scholars.lib.ntu.edu.tw/handle/123456789/552148 |
ISSN: | 1424-8220 | DOI: | 10.3390/s19235105 | SDG/關鍵字: | Biological organs; Concentration (process); Diagnosis; Diseases; Electromagnetic induction; Electromagnets; Endoscopy; Magnetic flux; Personnel training; Solar concentrators; Surface discharges; Tumors; Electromagnetic; Endobronchoscope; Locating; Lung Cancer; Magnetic; Magnetic flux concentrators; Targeting; Silicon steel; silicon; steel; bronchoscopy; chemistry; devices; electromagnetism; human; lung tumor; Bronchoscopy; Electromagnetic Phenomena; Humans; Lung Neoplasms; Silicon; Steel |
顯示於: | 醫學系 |
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