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Proceedings Paper

Laser resistance and clinical application of a new endotracheal tube
Author(s): Antonio Baker-Schreyer; Wolfgang Bergler; Hans-Jochen Foth; Karl Hoermann; Josef Ungemach
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Paper Abstract

The protection of endotracheal tubes against laser induced ignition is necessary to enable a safe laser surgery of the upper aerodigestive tract. It was found, that tubes of polymers, like PVC, have a low ignition threshold and even worse evaporate toxic gases when accidentally irradiated by the laser beam. So far, a pure metal tube was described as the safest endotracheal tube. A new compound endotracheal tube build up by a rubber tube surrounded by an ondulated silver foil and a layer of white MerocelTM-foam, was tested to it's laser stability against the CO2-laser. The damage threshold of this tube was 3 X 106 W/cm2 and is significantly higher than the damage threshold of the metal tube and far above the power density used for coagulation or ablation of tissue. Beside these experimental results, the contribution contains experiences and preliminary results obtained from a randomized clinical study, in which the new compound tube so far has proven to be ideal in handling and till now has not caused any problems concerning the laser resistance.

Paper Details

Date Published: 12 May 1995
PDF: 8 pages
Proc. SPIE 2395, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V, (12 May 1995); doi: 10.1117/12.209114
Show Author Affiliations
Antonio Baker-Schreyer, Univ. Hospital Mannheim (Germany)
Wolfgang Bergler, Univ. Hospital Mannheim (Germany)
Hans-Jochen Foth, Univ. Kaiserslautern (Germany)
Karl Hoermann, Univ. Hospital Mannheim (Germany)
Josef Ungemach, Univ. Hospital Mannheim (Germany)


Published in SPIE Proceedings Vol. 2395:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V
R. Rox Anderson; Graham M. Watson; Rudolf W. Steiner; Douglas E. Johnson; Stanley M. Shapshay; Michail M. Pankratov; George S. Abela; Lawrence S. Bass; John V. White; Rodney A. White; Kenneth Eugene Bartels; Lloyd P. Tate; C. Thomas Vangsness, Editor(s)

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