標題: An Electromagnetic-Induction Approach for Screw-Hole Targeting in Interlocking-Nail Surgery
作者: Chung, Tien-Kan
Chu, Hou-Jen
Wong, Tze-Hong
Hsu, Wensyang
Lee, Meng-Shiue
Lo, Wen-Tuan
Tseng, Chia-Yuan
機械工程學系
Department of Mechanical Engineering
公開日期: 2012
摘要: We report a novel approach for targeting screw-holes of an intramedullary nail in a long-bone fracture surgery. The approach utilizes the electromagnetic induction to avoid over exposure of radioactivity which is the critical issue in conventional X-ray-imaging targeting method. Based on the approach, we fabricate a targeting system. The targeting system consists of a c-shaped electromagnet, detecting-coil, guiding-mechanism, and measurement electronics. When a voltage is applied to the electromagnet, magnetic flux is generated in the air gap of the electromagnet and subsequently detected by the coil. When the flux is detected by the coil, a voltage response is induced in the coil. When a nail in a bone is scanned through the air gap of the electromagnet, the flux is influenced due to a discrepancy of the permeability between the location with and without the hole of the nail. The influenced flux induces different voltage response in the coil. Through analyzing the voltage response, we establish a criterion for targeting the holes. By the criterion, the experimental result shows the maximum error of targeting a hole with a diameter of 5 mm is less than 2.5 mm.
URI: http://hdl.handle.net/11536/21621
ISBN: 978-1-4577-1766-6
ISSN: 1930-0395
期刊: 2012 IEEE SENSORS PROCEEDINGS
起始頁: 1704
結束頁: 1707
Appears in Collections:Conferences Paper