Optical Feedback System for Smart Laserosteotome

The main challenges in this project are to develop Optical based sensor that provide feedback during laser surgery. This feedback mechanism will help the surgeon to specifically determine the tissue that being cut and stop the laser when the all desired tissue have been removed. In this way, it will provide high specificity in laser cutting which can prevent cutting important and critical tissues. To develop this sensor, we will need to investigate the best way possible to measure properties of tissue that being cut by using Optical means. We will design and build the Optical system and integrate it into an endoscopic/fiberscopic laser surgery system. The method will be based on measuring the optical signals that are generated from laser ablation process and/or other light processes (eq. Raman, LIBS, etc.) which will be merely depend on tissue optical properties (eq. Absorption, Scattering, etc.). (Hamed Abbasi)

Hamed Abbasi

Hamed Abbasi

Prof. Azhar Zam

Prof. Azhar Zam

Beltrán Bernal, L. M., Abbasi, H. and Zam, A. (2020) ‘Laser in Bone Surgery’, in Stübinger, S., Klämpfl, F., Schmidt, M., and Zeilhofer, H.-F. (eds) Lasers in Oral and Maxillofacial Surgery. Springer Nature Switzerland AG: Springer, pp. 99-109. doi: https://doi.org/10.1007/978-3-030-29604-9_9

Abbasi, H., Sugiarto, I., Rauter, G., Guzman, R., Cattin, P. and Zam, A. (2018) ‘Pilot Ex Vivo Study of Laser-Induced Breakdown Spectroscopy to Detect Bone Dehydration: An Approach for Irrigation Feedback in Laserosteotomy’, in 2018 International Conference on Electrical Engineering and Computer Science (ICEECS). ICEECS. doi: https://doi.org/10.5281/zenodo.3514693

Hamed Abbasi, Lina M. Beltrán Bernal, Arsham Hamidi, Antoine Droneau, Ferda Canbaz, Raphael Guzman, Steven L. Jacques, Philippe C. Cattin, and Azhar Zam, "Combined Nd:YAG and Er:YAG lasers for real-time closed-loop tissue-specific laser osteotomy," Biomed. Opt. Express 11, 1790-1807 (2020) doi: https://doi.org/10.1364/BOE.385862

H. Abbasi, G. Rauter, R. Guzman, P. C. Cattin, A. Zam, “Differentiation of femur bone from surrounding soft tissue using laser-induced breakdown spectroscopy as a feedback system for tissue-specific laser surgery”, Proc. SPIE, Vol. 10685, in Photonics Europe (2018). doi: https://doi.org/10.1117/12.2309473

H. Abbasi, G. Rauter, R. Guzman, P. C. Cattin, A. Zam, “Laser-induced breakdown spectroscopy as a potential tool for autocarbonization detection in laserosteotomy”, Journal of Biomedical Optics, Vol. 23, No. 7, p. 071206 (2018). doi: https://doi.org/10.1117/1.JBO.23.7.071206

H. Abbasi, G. Rauter, R. Guzman, P. C. Cattin, A. Zam, “Plasma plume expansion dynamics in nanosecond Nd:YAG laserosteotome”, Proc. SPIE, Vol. 10505, in Photonics West: BIOS (2018). doi: https://doi.org/10.1117/12.2290980

H. Abbasi, L. Beltrán, G. Rauter, R. Guzman, P. C. Cattin, A. Zam, “Effect of cooling water on ablation in Er:YAG laserosteotome of hard bone”, Proc. SPIE, Vol. 10453, in AOP (2017). doi: https://doi.org/10.1117/12.2272138

L. Beltrán, H. Abbasi, G. Rauter, N. Friederich , P. C. Cattin, A. Zam, "Effect of laser pulse duration on ablation efficiency of hard bone in microseconds regime", Proc. SPIE 10453, Third International Conference on Applications of Optics and Photonics, 104531S (2017) doi: https://doi.org/10.1117/12.2272253