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Proceedings Paper

In-vivo CO2 laser rat urinary bladder welding with silver halide fiber optic radiometric temperature control
Author(s): Bernard Lobel M.D.; Ophir Eyal; Edward Belotserkovsky; Ofer Shenfeld M.D.; Noam Kariv; Benad Goldwasser; Abraham Katzir
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Paper Abstract

Laser welding has been used for connecting various tissues in the body. In urology such welding has the advantage of forming an immediate water tight seal. We have developed a fiberoptic system that makes it possible to monitor and control the temperature of the tissue during welding. In previous work we demonstrated that this system could be successfully used to weld punctures in the urinary bladder of rats. It was found that optimal welding was obtained at a temperature of 55 degree(s)C. In this work we used the same system for welding of large openings (cystotomy) in the urinary bladder of rats. In early experiments we used stay sutures and decompressing catheters. It was later found that complete closure can be obtained with CO2-laser welding alone. This work demonstrates the feasibility of using temperature controlled laser welding as an efficient surgical tool.

Paper Details

Date Published: 12 May 1995
PDF: 6 pages
Proc. SPIE 2395, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V, (12 May 1995); doi: 10.1117/12.209140
Show Author Affiliations
Bernard Lobel M.D., Ctr. Hospitalier Pontchaillou (France)
Ophir Eyal, Tel Aviv Univ. (Israel)
Edward Belotserkovsky, Tel Aviv Univ. (Israel)
Ofer Shenfeld M.D., Sheba Medical Ctr. (Israel)
Noam Kariv, Tel Aviv Univ. Sackler School of Medicine (Israel)
Benad Goldwasser, Sheba Medical Ctr. (Israel)
Abraham Katzir, Tel Aviv Univ. (Israel)

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

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