Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy
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 elect...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/23/5105 |
| _version_ | 1818035809994932224 |
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| author | Chin-Chung Chen Ching-Kai Lin Chen-Wei Chang Yun-Chien Cheng Jia-En Chen Sung-Lin Tsai Tien-Kan Chung |
| author_facet | Chin-Chung Chen Ching-Kai Lin Chen-Wei Chang Yun-Chien Cheng Jia-En Chen Sung-Lin Tsai Tien-Kan Chung |
| author_sort | Chin-Chung Chen |
| collection | DOAJ |
| description | 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 <i>x</i>-, <i>y</i>- and <i>z</i>-axes are 9 mm, 10 mm, and 5 mm, respectively. |
| first_indexed | 2024-12-10T07:00:58Z |
| format | Article |
| id | doaj.art-2c60d832b49b453b971b5c4928127648 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T07:00:58Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2c60d832b49b453b971b5c49281276482022-12-22T01:58:19ZengMDPI AGSensors1424-82202019-11-011923510510.3390/s19235105s19235105Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for EndobronchoscopyChin-Chung Chen0Ching-Kai Lin1Chen-Wei Chang2Yun-Chien Cheng3Jia-En Chen4Sung-Lin Tsai5Tien-Kan Chung6Department of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Mechanical Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanIn 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 <i>x</i>-, <i>y</i>- and <i>z</i>-axes are 9 mm, 10 mm, and 5 mm, respectively.https://www.mdpi.com/1424-8220/19/23/5105passive magnetic-flux concentratormagneticelectromagnetictargetingtrackinglocatingendobronchoscopeendoscopelung cancer tumor/lesion |
| spellingShingle | Chin-Chung Chen Ching-Kai Lin Chen-Wei Chang Yun-Chien Cheng Jia-En Chen Sung-Lin Tsai Tien-Kan Chung Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy Sensors passive magnetic-flux concentrator magnetic electromagnetic targeting tracking locating endobronchoscope endoscope lung cancer tumor/lesion |
| title | Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy |
| title_full | Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy |
| title_fullStr | Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy |
| title_full_unstemmed | Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy |
| title_short | Passive Magnetic-Flux-Concentrator Based Electromagnetic Targeting System for Endobronchoscopy |
| title_sort | passive magnetic flux concentrator based electromagnetic targeting system for endobronchoscopy |
| topic | passive magnetic-flux concentrator magnetic electromagnetic targeting tracking locating endobronchoscope endoscope lung cancer tumor/lesion |
| url | https://www.mdpi.com/1424-8220/19/23/5105 |
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