Real-Time Curvature Detection of a Flexible Needle with a Bevel Tip
AbstractAs one of the major methods for the diagnosis and treatment of cancers in their early stages, the percutaneous puncture technique has bright prospect in biopsy, ablation, proximity radiotherapy, and drug delivery. Recent years, researchers found the flexible needle cannot realize feedback control during the puncture surgeries only by path planning. To solve this problem, the flexible needle is tried to achieve real-time detection in this paper. Compared with previous methods, the strain gauges glued on the needle surface rather than the medical imaging techniques is used to collect the information to reconstruct the needle curve, which is benefit to integrate the whole system and obtain a more simple and accurate closed-loop control. This paper presented the math model of curve fitting and analyzed the causes of curve fitting errors. To verify the feasibility of this method, an experiment setup was built. Results from the experiments validated the solution in this paper to be effective. View Full-Text
Share & Cite This Article
Zhang, B.; Chen, F.; Yang, M.; Huang, L.; Du, Z.; Sun, L.; Dong, W. Real-Time Curvature Detection of a Flexible Needle with a Bevel Tip. Sensors 2018, 18, 2057.
Zhang B, Chen F, Yang M, Huang L, Du Z, Sun L, Dong W. Real-Time Curvature Detection of a Flexible Needle with a Bevel Tip. Sensors. 2018; 18(7):2057.Chicago/Turabian Style
Zhang, Bo; Chen, Fangxin; Yang, Miao; Huang, Linxiang; Du, Zhijiang; Sun, Lining; Dong, Wei. 2018. "Real-Time Curvature Detection of a Flexible Needle with a Bevel Tip." Sensors 18, no. 7: 2057.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.