The effect of argon gas flow during electrosurgery

Remco J. van Vliet*, Rudolf M. Verdaasdonk, Christiann F.P. van Swol

*Corresponding author for this work

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Electrosurgery has been used for over fifty years. Recently a new modality has been introduced: gas-enhanced electrosurgery. A flow of argon gas is blown along the active electrode. For clinical application the temperature distribution in the tissue is of interest. The effect of argon was investigated using two methods. 1) Visualizing the temperature distribution in phantom tissue using Schlieren techniques. 2) Tissue experiments with macroscopic evaluation of the lesions. The electrodes were moved over the tissue surface with different parameter settings for speed (1-4 mm/s), gas flow (0, 5 or 9 l/min.), gas-outlet positioning (6, 13 and 21 mm above the tissue) and depth of the electrode in the tissue (0-4 mm). The extent of the coagulation zone seemed to be depend most on gas flow rate in combination with power and the distance of the gasoutlet. Argon gas-enhanced electrodes showed to be especially effective just touching the tissue to obtain a superficial coagulation of the surrounding tissue.

Original languageEnglish
Pages (from-to)216-217
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Issue number1
Publication statusPublished - 1 Dec 1996
Externally publishedYes
Event18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 1996: Bridging Disciplines for Biomedicine - Amsterdam, Netherlands
Duration: 31 Oct 19963 Nov 1996
Conference number: 18


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