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Proceedings Paper

Modified fiber tips for light application in hollow organs
Author(s): Armin Heinze; Wolfgang Beyer; M. Krug; K. Schaarschmidt; Ronald Sroka; Herbert G. Stepp; Eberhard Unsoeld; G. H. Willital
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Paper Abstract

Four ways of optimizing laser-assisted treatments in hollow organs are proposed in this paper: 1 . For coagulation in axial direction at small irradiation distances fiber tips with enhanced divergence increase the coagulation volume and reduce vaporization. 2. Circumferentially complete coagulation of cylindrical organs can be achieved by using a radially radiating probe. 3. Radiators for photodynamic therapy in cylindrical organs can be constructed and optimized by means of a theoretical scattering model. 4. Isotropic radiators based on conical fiber tips improve the radiation into the rear hemisphere.

Paper Details

Date Published: 1 July 1990
PDF: 9 pages
Proc. SPIE 1201, Optical Fibers in Medicine V, (1 July 1990); doi: 10.1117/12.17550
Show Author Affiliations
Armin Heinze, GSF-Zentrales Laserlaboratorium and Univ. Muenster (Germany)
Wolfgang Beyer, GSF-Zentrales Laserlaboratorium and Univ. Muenchen (Germany)
M. Krug, GSF-Zentrales Laserlaboratorium and Univ. Muenchen (Germany)
K. Schaarschmidt, Univ. Muenster (Germany)
Ronald Sroka, GSF-Zentrales Laserlaboratorium and Univ. Erlangen-Nuernberg (Germany)
Herbert G. Stepp, GSF-Zentrales Laserlaboratorium (Germany)
Eberhard Unsoeld, GSF-Zentrales Laserlaboratorium (Germany)
G. H. Willital, Univ. Muenster (Germany)

Published in SPIE Proceedings Vol. 1201:
Optical Fibers in Medicine V
Abraham Katzir, Editor(s)

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