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Proceedings Paper

System development and clinical studies with a scanning CO2 laser osteotome
Author(s): Mikhail Ivanenko; Martin Werner; Manfred Klasing; Peter Hering
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Paper Abstract

Non-contact laser osteotomy brings new opportunities in maxillofacial and other surgical fields, since it allows very precise pre-programmed incisions of arbitrary geometries. Laser osteotomy is however difficult, because bone is a tough composite material, which is at the same time sensitive to a temperature increase. Besides thermal side effects, practical laser applicability was limited until now because of very low cutting rates and limited incision depths. We discuss how to overcome these disadvantages by means of an optimal arrangement of thermo-mechanical ablation with a pulsed CO2 laser and with a water-spray as an assisting media. To the arrangement belong optimal duration, intensity and energy density of the laser pulses, as well as a multi-pass cutting procedure. We show that effective ablation of hard tissue with minor thermal damage is possible with relatively long CO2 laser pulses of 80 μs duration and average laser power up to 40 - 50 W. To overcome the depth limit we have developed a special scanning technique, which allows cutting of massive multilayer bones with a feasible rate.

Paper Details

Date Published: 28 February 2006
PDF: 6 pages
Proc. SPIE 6084, Optical Interactions with Tissue and Cells XVII, 60840H (28 February 2006); doi: 10.1117/12.645899
Show Author Affiliations
Mikhail Ivanenko, Ctr. of Advanced European Studies and Research (Germany)
Martin Werner, Ctr. of Advanced European Studies and Research (Germany)
Manfred Klasing, Ctr. of Advanced European Studies and Research (Germany)
Peter Hering, Ctr. of Advanced European Studies and Research (Germany)
Institute of Laser Medicine, Univ. of Duesseldorf (Germany)

Published in SPIE Proceedings Vol. 6084:
Optical Interactions with Tissue and Cells XVII
Steven L. Jacques; William P. Roach, Editor(s)

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