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Proceedings Paper

Permanent gases and highly volatile organic compounds in laser plume
Author(s): Hans-Juergen Weigmann; Juergen Lademann; H. Meffert; Wolfram Sterry
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Paper Abstract

The characteristic gaseous and highly volatile organics emitted during laser tissue interaction were investigated in order to understand and to classify fundamental chemical processes as well as to influence the produced substances. The amount of oxygen available and the temperature efficient inside the reaction zone are the most important parameters, determining type and amount of the emitted chemicals. Summarizing the results, generally, it is possible to state that the emission of toxic and cancerogenic substances during laser tissue interaction is favored if high temperatures arise inside the reaction area, if dried or carbonized tissue is irradiated, or if inert gases are used. A high oxygen content available in the reaction area, realized, e.g. by addition of a water aerosol, lowers the production of harmful chemicals.

Paper Details

Date Published: 5 December 1996
PDF: 4 pages
Proc. SPIE 2923, Laser-Tissue Interaction and Tissue Optics II, (5 December 1996); doi: 10.1117/12.260737
Show Author Affiliations
Hans-Juergen Weigmann, Univ. Charite der Humboldt-Univ. zu Berlin (Germany)
Juergen Lademann, Univ. Charite der Humboldt-Univ. zu Berlin (Germany)
H. Meffert, Univ. Charite der Humboldt-Univ. zu Berlin (Germany)
Wolfram Sterry, Univ. Charite der Humboldt-Univ. zu Berlin (Germany)

Published in SPIE Proceedings Vol. 2923:
Laser-Tissue Interaction and Tissue Optics II
Hansjoerg Albrecht; Guy P. Delacretaz; Thomas H. Meier; Rudolf W. Steiner; Lars Othar Svaasand, Editor(s)

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