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Japanese

A NEWLY DEVISED ENDOSCOPE FOR REVEALING THE NASAL EUSTACHIAN TUBE ORIFICE Yasuyuki Ishii pp.677-681
Published Date 1970/9/20
DOI https://doi.org/10.11477/mf.1492207513
  • Abstract
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 The conventional endoscope for making observations of the orifice of the Eustachian tube is not devoid of several defects because it is composed of an antroscope. Observations for finer parts with such an instrument are a difficulty due to insufficient light as well as the instrument being either too thick or too thin.

 For this reason a new endoscope is introduced which is provided with a tremendously advanced optic glass fiber and optic lens and Xenon Short Arc lamp for light sources which allows photographing as well as movie taking. The instrument is quite compact in size. Pictures taken by the instrument are presented.


Copyright © 1970, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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