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Proceedings Paper

Evolution of char-free laser surgery: from cw to Superpulse (S.P.) to Sharpulse and SwiftLase
Author(s): Joshua Raif; E. Zair; Hanoch Levavi; A. Nyska
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Paper Abstract

Commercial CO2 surgical lasers introduced in the early 70's employed continuous-wave operation only. Following several years of clinical research and applications, it was realized that for some procedures surrounding thermal necrosis was too excessive. The Superpulse mode, adapted from industrial CO2 laser ceramic scribing techniques, was found to be advantageous and was thus incorporated in surgical systems. Over the years, additional modes such as the Pulser (chopped) mode were adapted. However, only recently a better understanding of CO2 laser-tissue interactions has led to significant improvements in char- free techniques, especially for non-focused, tissue surface treatments. These techniques are based on high energy pulse modes such as the SharpulseTM as well as innovative beam scanning devices like the SwiftLaseTM and SilkTouchTM. The evolution of these different techniques and their basic physical principles will be discussed, and histologies showing reduced tissue carbonization and thermal necrosis will be presented.

Paper Details

Date Published: 1 May 1995
PDF: 8 pages
Proc. SPIE 2396, Biomedical Optoelectronic Instrumentation, (1 May 1995); doi: 10.1117/12.208402
Show Author Affiliations
Joshua Raif, Laser Industries Ltd. (Israel)
E. Zair, Laser Industries Ltd. (Israel)
Hanoch Levavi, Beilinson Medical Ctr. (Israel)
A. Nyska, Kimron Veterinary Institute (Israel)

Published in SPIE Proceedings Vol. 2396:
Biomedical Optoelectronic Instrumentation
James A. Harrington; David M. Harris; Abraham Katzir, Editor(s)

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