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Proceedings Paper

Argon laser vascular tissue fusion: current status and future perspectives
Author(s): Rodney A. White; George E. Kopchok
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Paper Abstract

Tissue fusion by laser energy is an intriguing and very promising new applications for laser technology. In comparison to using high laser energy to ablate tissue as in the angioplasty application, laser tissue fusion is possible in any soft tissue by delivering appropriate low levels of energy to the opposed tissue surfaces. This technology is particularly appealing for vascular applications in making sutureless blood vessel anastomosisand for securing the endpoints of endarterectomies and dissection planes. Although there have been limited evaluations of this technology, the preliminary experimental and clinical data is very promising for continued development and application. Vascular tissue fusion or welding by lasers is performed by directing a low energy beam at the opposed edges of the repair. The energy is applied by moving the beam back and forth along the fusion line or, in certain cases, by delivering the energy in "spot" applications. Vessel sealing is apparent in the majority of fusions to the trained eye, as is nonunion caused by inadequate energy delivery, or tissue coagulation or vaporization from excessive energy exposure. Laser repairs can be fashioned in time intervals comparable to or slightly longer than those required for suture repairs. Precision of tissue apposition at the time of fusion is a critical parameter which affects the rate of healing and tensile strength of tissue welds. A gap between the vessel edges or blood at the interface compromises weld strength.

Paper Details

Date Published: 1 June 1991
PDF: 8 pages
Proc. SPIE 1422, Lasers in Dermatology and Tissue Welding, (1 June 1991); doi: 10.1117/12.43945
Show Author Affiliations
Rodney A. White, Harbor-UCLA Medical Ctr. (United States)
George E. Kopchok, Harbor-UCLA Medical Ctr. (United States)

Published in SPIE Proceedings Vol. 1422:
Lasers in Dermatology and Tissue Welding
Oon Tian Tan; Rodney A. White; John V. White, Editor(s)

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