Laser balloon vascular welding using a dye-enhanced albumin solder

Beat Ott; Benno J. Zueger; Dominique Erni; Andrej Banic; Thomas Schaffner; Heinz P. Weber; Martin Frenz

doi:10.1117/12.427790

21 May 2001 Laser balloon vascular welding using a dye-enhanced albumin solder

Beat Ott, Benno J. Zueger, Dominique Erni, Andrej Banic, Thomas Schaffner, Heinz P. Weber, Martin Frenz

Proceedings Volume 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI; (2001) https://doi.org/10.1117/12.427790
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

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.

Citation Download Citation

Beat Ott, Benno J. Zueger, Dominique Erni, Andrej Banic, Thomas Schaffner, Heinz P. Weber, and Martin Frenz "Laser balloon vascular welding using a dye-enhanced albumin solder", Proc. SPIE 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI, (21 May 2001); https://doi.org/10.1117/12.427790

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