Simultaneous Tissue Identification And Ablation With Excimer Laser

Kristian Hohla; Gunther Laufer; Gregor Wollenek; Reinhard Horvat; Heinz-Werner Henke; Martin Buchelt; Gabriele Wuzi; Ernst Wolner

doi:10.1117/12.945355

3 June 1988 Simultaneous Tissue Identification And Ablation With Excimer Laser

Kristian Hohla, Gunther Laufer, Gregor Wollenek, Reinhard Horvat, Heinz-Werner Henke, Martin Buchelt, Gabriele Wuzi, Ernst Wolner

Author Affiliations +

Proceedings Volume 0908, Laser Interaction with Tissue; (1988) https://doi.org/10.1117/12.945355
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

Abstract

Laser induced fluorescence of human tissue has been discussed as a tool for control of laser application in surgery for some years. Differences in tissue composition create different spectra, thus leading to a unique identification. We have demonstrated that this method can be combined with the photoablative effect of excimer laser radiation. The irradiated and ablated material fluoresces in a characteristic manner, which can be used to control the further action of the excimer laser. The analysis of the spectrum is performed within 30 ms by computer thus allowing repetition rates of 30 shots per sec corresponding to a cutting speed of 0.5 mm per sec. A Combination of both, recognition of fluorescence spectra and subsequent computer-controlled laser emission leads the way to computer guided surgery (CGS) with resolution in the pm range.

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Kristian Hohla, Gunther Laufer, Gregor Wollenek, Reinhard Horvat, Heinz-Werner Henke, Martin Buchelt, Gabriele Wuzi, and Ernst Wolner "Simultaneous Tissue Identification And Ablation With Excimer Laser", Proc. SPIE 0908, Laser Interaction with Tissue, (3 June 1988); https://doi.org/10.1117/12.945355

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