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Proceedings Paper

Laser balloon vascular welding using a dye-enhanced albumin solder
Author(s): Beat Ott; Benno J. Zueger; Dominique Erni; Andrej Banic; Thomas Schaffner; Heinz P. Weber; Martin Frenz
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Paper Abstract

Porcine posterior tibial arteries (n equals 50) and saphenous veins (n equals 32) have been welded end-to-end using an 808 nm diode laser combined with an indocyanine green enhanced albumin solder. For comparison, the same welding procedure has been performed with a Holmium:YAG laser without solder. Both lasers were running in continuous wave (cw) regime at a power limited below 1.2 W. The vascular stumps were approached to each other over a coronary dilatation catheter in order to obtain a precise alignment. The balloon catheter simplified vessel handling and the tight vessel positioning prevented a solder penetration into the lumen. Standard histology revealed for both welding techniques a lateral tissue damage between 2 and 3 mm. The vessels welded with the 808 nm diode laser using albumin solder showed considerably higher tensile strength (1 N compared to 0.3 N) than vessels welded exclusively by Ho:YAG laser radiation. In contrast, leaking pressure (350 +/- 200 mmHg) and bursting pressure 457 +/- 200 mmHg) were independent of the welding technique used.

Paper Details

Date Published: 21 May 2001
PDF: 5 pages
Proc. SPIE 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI, (21 May 2001); doi: 10.1117/12.427790
Show Author Affiliations
Beat Ott, Univ. of Bern (Switzerland)
Benno J. Zueger, Univ. of Bern (Switzerland)
Dominique Erni, Univ. of Bern (Switzerland)
Andrej Banic, Univ. of Bern (Switzerland)
Thomas Schaffner, Univ. of Bern (Switzerland)
Heinz P. Weber, Univ. of Bern (Switzerland)
Martin Frenz, Univ. of Bern (Switzerland)

Published in SPIE Proceedings Vol. 4244:
Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI
Lawrence S. Bass; David S. Robinson; Eugene A. Trowers; Kenton W. Gregory; Lou Reinisch; Kenneth Eugene Bartels; R. Rox Anderson; Reza S. Malek; Kenneth Eugene Bartels; Lloyd P. Tate; Abraham Katzir; C. Gaelyn Garrett; Timothy A. Woodward; Hans-Dieter Reidenbach; George M. Peavy; Lawrence S. Bass; C. Gaelyn Garrett; Michael D. Lucroy; Kenton W. Gregory; Abraham Katzir; Nikiforos Kollias; Michael D. Lucroy; Reza S. Malek; J. Stuart Nelson; George M. Peavy; Hans-Dieter Reidenbach; Lou Reinisch; David S. Robinson; Lloyd P. Tate; Eugene A. Trowers; Timothy A. Woodward, Editor(s)

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