In-vivo CO2 laser rat urinary bladder welding with silver halide fiber optic radiometric temperature control

Bernard Lobel M.D.; Ophir Eyal; Edward Belotserkovsky; Ofer Shenfeld M.D.; Noam Kariv; Benad Goldwasser; Abraham Katzir

doi:10.1117/12.209140

12 May 1995 In-vivo CO₂ laser rat urinary bladder welding with silver halide fiber optic radiometric temperature control

Bernard Lobel M.D., Ophir Eyal, Edward Belotserkovsky, Ofer Shenfeld M.D., Noam Kariv, Benad Goldwasser, Abraham Katzir

Author Affiliations +

Proceedings Volume 2395, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V; (1995) https://doi.org/10.1117/12.209140
Event: Photonics West '95, 1995, San Jose, CA, United States

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.

Citation Download Citation

Bernard Lobel M.D., Ophir Eyal, Edward Belotserkovsky, Ofer Shenfeld M.D., Noam Kariv, Benad Goldwasser, and Abraham Katzir "In-vivo CO₂ laser rat urinary bladder welding with silver halide fiber optic radiometric temperature control", Proc. SPIE 2395, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems V, (12 May 1995); https://doi.org/10.1117/12.209140

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