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Proceedings Paper

Endotracheal tubes: model calculation for heat distribution in the Rusch Lasertubus and a metallic tube
Author(s): Hans-Jochen Foth; Adriaen Postel
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Paper Abstract

In earlier experiments it was shown that the laser resistance of a composite tube (Rusch, Lasertubus) is high enough to withstand power densities of up to 106 W/cm2 for exposure times up to 120 seconds, while the metallic tube ('Laser-FlexTM', Mallinckrodt) got destroyed within some seconds at several 1000 W/cm2. The reason for the high laser resistance of the composite tube was explained by a cooling mechanism due to vaporization water stored in the moistened foam which covers the outside of this tube. This model was checked by measuring the laser induced temperatures of the tubes by an IR camera and compare these results with model calculation carried out by the method of finite elements.

Paper Details

Date Published: 1 July 1998
PDF: 9 pages
Proc. SPIE 3245, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII, (1 July 1998); doi: 10.1117/12.312285
Show Author Affiliations
Hans-Jochen Foth, Univ. of Kaiserslautern (Germany)
Adriaen Postel, Univ. of Kaiserslautern (Germany)


Published in SPIE Proceedings Vol. 3245:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems VIII
Graham M. Watson; Reza S. Malek; Aaron P. Perlmutter; Penny J. Smalley; Sharon L. Thomsen; Harvey Lui; Lawrence S. Bass; R. Rox Anderson; Lou Reinisch; C. Gaelyn Garrett; Kenneth Eugene Bartels; Lloyd P. Tate; R. Rox Anderson; Kenneth Eugene Bartels; Lawrence S. Bass; C. Gaelyn Garrett; Kenton W. Gregory; Harvey Lui; Reza S. Malek; Aaron P. Perlmutter; Lou Reinisch; Penny J. Smalley; Lloyd P. Tate; Sharon L. Thomsen; Graham M. Watson, Editor(s)

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