7 March 2014 Smart surgical tool
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Abstract
In this paper, a LIBS guided smart surgical tool using a femtosecond (fs) fiber laser is investigated. This functional system includes a high energy fs fiber laser system (PolarOnyx Laser, Inc. - Uranus mJ Series) for material ablation, a 3D controllable motion stage, LIBS signal collecting fiber to a spectrometer and a computer for data analysis and process control. The laser source employed emits pulses with pulse duration of 750 fs at a repetition rate tunable from 1 Hz to 1 MHz. The centre wavelength is at 1030 nm and the pulse energy can be up to 500 μJ. General characteristics like ablation rate and LIBS signal are determined at first. Furthermore the LIBS data is processed and analyzed for material characterization and differentiation. Comparison methods to identify the different materials emissions are developed and algorithms are implemented into a real-time control system. This system allows processing of different materials with real time feedback and capability to the laser parameters (pulse energy and repetition rate) and processing parameters (speed) and provides a powerful LIBS guided smart surgical tool with fs fiber laser for delicate surgery applications.
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Huan Huang, Shuang Bai, Lih-Mei Yang, Jian Liu, "Smart surgical tool", Proc. SPIE 8972, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIV, 89720G (7 March 2014); doi: 10.1117/12.2041719; https://doi.org/10.1117/12.2041719
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