Two-photon 3D printed fiber-optic Fabry–Perot probe for triaxial contact force detection of guidewire tips  

作　　者：RUIXUE YIN YUHANG YANG LINSONG HOU HEMING WEI HONGBO ZHANG WENJUN ZHANG 

机构地区：[1]Shanghai Key Laboratory of Intelligent Sensing and Detection,East China University of Science and Technology,Shanghai 200237,China [2]National Center for Translational Medicine(Shanghai)SHU Branch,Shanghai University,Shanghai 200444,China [3]Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China [4]Department of Mechanical Engineering,University of Saskatchewan,Saskatoon,Saskatchewan S7N5A9,Canada

出　　处：《Photonics Research》2024年第11期2474-2487,共14页光子学研究(英文版)

基　　金：Foundation of National Center for Translational Medicine(Shanghai)SHU Branch(SUITM-2023010);National Natural Science Foundation of China(62005153)。

摘　　要：The demand for real-time feedback and miniaturization of sensing elements is a crucial issue in the treating vascular diseases with minimally invasive interventions.Here,Fabry–Perot microcavities fabricated via direct laser writing using a two-photon polymerization technique on fiber tips are proposed,designed,simulated,and experimentally demonstrated as a miniature triaxial force sensor for monitoring real-time interactions between the tip of a guidewire and human blood vessels and tissues during minimally invasive surgeries.The sensor contains four fiber tip-based Fabry–Perot cavities,which can be seamlessly integrated into medical guidewires and achieves three-axis force decoupling through symmetrically arranged flexible structures.The results showed that the proposed sensor achieved a cross-sectional diameter of 890μm and a high sensitivity of about 85.16 nm/N within a range of 0 to 0.5 N with a resolution of hundreds of micro-Newtons.The proposed triaxial force sensor exhibits high resolution,good biocompatibility,and electromagnetic compatibility,which can be utilized as an efficient monitoring tool integrated into minimally invasive surgical intervention devices for biomedical applications.

关 键 词：sectional utilized compatibility 

分 类 号：O57[理学—粒子物理与原子核物理]