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Cylindrical irradiator fiber tip for photodynamic therapy
Author(s) -
Arnfield M.,
Gonzalez S.,
Mcphee M.,
Tulip J.,
Lea P.
Publication year - 1986
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900060211
Subject(s) - materials science , optics , optical fiber , photodynamic therapy , cylinder , fiber , light scattering , light guide , laser , backlight , fiber laser , scattering , optoelectronics , composite material , light source , chemistry , mechanical engineering , physics , organic chemistry , liquid crystal display , engineering
Abstract In photodynamic therapy (PDT) the uniform distribution of intratumor or externally applied light is desirable but often difficult to achieve. An optical fiber tip producing cylindrical or lateral light emission can facilitate the application of laser energy by direct implantation of the tip into solid tumors or within tubular cavities of the body such as the bronchus or esophagus. A procedure is described for fabricating such a fiber tip, the main component of which is a hollow glass cylinder containing a light‐scattering material. Light distributions emitted from the tip in air are documented. Useful properties of the tip include good light distribution, durability, heat resistance, and simplicity of construction.