Coagulation and precise ablation of biotissues by pulsed sealed-off carbon monoxide laser

Victor I. Masychev; Vladislav S. Alejnikov; Vladimir I. Klimenko

doi:10.1117/12.44120

1 June 1991 Coagulation and precise ablation of biotissues by pulsed sealed-off carbon monoxide laser

Victor I. Masychev, Vladislav S. Alejnikov, Vladimir I. Klimenko

Proceedings Volume 1427, Laser-Tissue Interaction II; (1991) https://doi.org/10.1117/12.44120
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

Abstract

Continuous-wave CO-laser seems to be useful in surgery of soft blood tissue because its spectrum contains the components with cutting and coagulating features. If CO-laser or another types of continuous wave lasers for surgering are employed the main cause of the health tissues damaging on the walls of cut of drilled hole, is heating walls by evaporation products. Tissue damaging by heated products are not excepting under the thermal process of tissue destruction principally. This is apparent with continuous water vaporjet induced by C-W laser beams particularly. It is shown that depth of cuts wall overheated by destruction products, may be decreased in some times by means of using the pulse repetition mode operation CO-laser and the mass removed rate decreased at the same time. This approach is appropriated in the case when thermal influence area decreasing is the main demand to the planed surgery intervention. Coagulative effect on the walls of laser wound may be provided by the radiation with relatively large penetrative length in tissue. In case of CO-laser its spectrum contains a sufficient part of such radiation for both continuous and pulsed modes.

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Victor I. Masychev, Vladislav S. Alejnikov, and Vladimir I. Klimenko "Coagulation and precise ablation of biotissues by pulsed sealed-off carbon monoxide laser", Proc. SPIE 1427, Laser-Tissue Interaction II, (1 June 1991); https://doi.org/10.1117/12.44120

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KEYWORDS

Laser tissue interaction

Gas lasers

Laser drilling

Pulsed laser operation

Tissues

Surgery

Laser cutting

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