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Proceedings Paper

Laser skin welding using water absorption and heat management
Author(s): Rabindra K. Halder; Alvin Katz; Howard E. Savage; Vladimir Kartazayev; Steven A. McCormick; Yury Budansky; Misu Paul; Richard B. Rosen; Robert R. Alfano
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Paper Abstract

Laser skin welding (LSW) is being pursued for scarless wound healing. We present a new LSW approach using a contact glass slide over the sample and rapid scanning of the laser beam around the area to be welded. This led to dramatic improvement in welding efficacy. A 400 mW beam at 1455 nm with a focused spot diameter of 80 μm in air was scanned at a rate of 5mm/second over a 5mm line of incision in 5 mm x 20 mm human skin samples. Histological analysis of the welded samples using hematoxyline and eosin under unpolarized light showed full-thickness full-length weld, and that with picrosirius red F3BA stain under polarized light revealed that there was no appreciable damage. Measured tensile strength of 2.1 kg/cm2 is markedly greater than our previous LSW results of 1.05 ± 0.19 kg/cm2, which is greater than the typical values of 0.4 kg/cm2 obtained using sutures.

Paper Details

Date Published: 25 April 2005
PDF: 3 pages
Proc. SPIE 5686, Photonic Therapeutics and Diagnostics, (25 April 2005); doi: 10.1117/12.592795
Show Author Affiliations
Rabindra K. Halder, The City College of the City University of New York (United States)
Alvin Katz, The City College of the City University of New York (United States)
Howard E. Savage, New York Eye and Ear Infirmary (United States)
Vladimir Kartazayev, The City College of the City University of New York (United States)
Steven A. McCormick, New York Eye and Ear Infirmary (United States)
Yury Budansky, The City College of the City University of New York (United States)
Misu Paul, The City College of the City University of New York (United States)
Richard B. Rosen, New York Eye and Ear Infirmary (United States)
Robert R. Alfano, The City College of the City University of New York (United States)


Published in SPIE Proceedings Vol. 5686:
Photonic Therapeutics and Diagnostics
Brian Jet-Fei Wong; Eugene A. Trowers; Kenton W. Gregory; Abraham Katzir; Nikiforos Kollias; Reza S. Malek; Henry Hirschberg; Kenneth Eugene Bartels; Steen J. Madsen; Lloyd P. Tate; Lawrence S. Bass; Werner T. W. de Riese; Karen M. McNally-Heintzelman, Editor(s)

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