Comparison of sampling conditions for laser plume analysis in surgery and in vitro experiments

Wolfgang Woellmer; Doina-Lucia Mihalache

doi:10.1117/12.199238

18 January 1995 Comparison of sampling conditions for laser plume analysis in surgery and in vitro experiments

Wolfgang Woellmer, Doina-Lucia Mihalache

Proceedings Volume 2323, Laser Interaction with Hard and Soft Tissue II; (1995) https://doi.org/10.1117/12.199238
Event: International Symposium on Biomedical Optics Europe '94, 1994, Lille, France

Abstract

Systematic investigations of the consistence of laser plume need reproducible conditions in terms of geometrical, optical and time scale parameters, which are to be quite well-defined in a carefully set up in vitro experiment. However, the conditions of plume production differ significantly in the surgical environment. Moreover, the sampling procedure for examinations of plume during laser operations is governed by the priority of the patient's treatment and must not disturb the progression of the operation. This has to be taken into account for estimations of the possibly existing hazard for the patient and the operating room staff on the basis of results of in vitro experiments. For laser-microlaryngoscopic operations in the ENT- clinic an intra-operational sampling procedure was designed. In comparison to other areas of laser surgery, laser-microlaryngoscopies allow a relatively well controlled trapping of the plume, using a microlaryngoscope especially developed for efficient laser plume evacuation. The results are compared to those obtained by application of the intraoperational sampling procedure in an in vitro simulation and to those yielded by in vitro experiments.

Citation Download Citation

Wolfgang Woellmer and Doina-Lucia Mihalache "Comparison of sampling conditions for laser plume analysis in surgery and in vitro experiments", Proc. SPIE 2323, Laser Interaction with Hard and Soft Tissue II, (18 January 1995); https://doi.org/10.1117/12.199238

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