COMPARISON OF TISSUE ABLATION USING TEA CO//2 AND Er: YAG LASERS.

Joseph T. Walsh, George J. Hruza, Thomas J Flotte, Thomas F. Deutsch, Jeffrey Manni, Peter F. Moulton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Tissue ablation using two different IR-emitting lasers has been compared. The TEA CO//2 laser emits 1 J of 10. 6- mu m radiation in 2 mu s. The Er:YAG laser, which emits at 2. 94 mu m, was used in both a P-switched and normal spiking mode. The Q-switched laser delivers up to 100 mJ in a 150-ns long pulse (FWHM); operating normal mode, the laser emits up to 600 mJ in a 250- mu s-long envelope containing about twenty 1- mu s-long pulses. The emission of both lasers is strongly absorbed by water and thus tissue. Results for both lasers are described. It is found that a Q-switched Er:YAG laser can easily ablate tissue, creating incisions with as little as 5 mu m of residual thermal damage. Such incisions heal rapidly.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
Place of PublicationWashington, DC, USA
PublisherOptical Soc of America
Pages88
Number of pages1
ISBN (Print)0936659491
StatePublished - 1987
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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