In vivo CO2-Laser rat urinary bladder welding with silver halide fiberoptic radiometric temperature control

Bernard Lobel, Edward Belotserkovs, Edward Belotserkovsky, Opher Shenfeld, Noam Kariv, Benad Goidwasser, Abraham Katzir

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

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°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.

Original languageEnglish
Pages (from-to)517-522
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2395
DOIs
StatePublished - 12 May 1995
Externally publishedYes
EventLasers in Surgery: Advanced Characterization, Therapeutics, and Systems V 1995 - San Jose, United States
Duration: 1 Feb 199528 Feb 1995

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