ENDOSCOPE

In an endoscope apparatus of the present invention, while observing a body cavity tissue under narrowband light via a second filter group of a rotating filter, a G2 filter section, B2 filter section, and shading filter section change illumination light to narrowband surface-sequential light of two b...

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Bibliographic Details
Main Authors GONO KAZUHIRO, AMANO SHOICHI, OHSHIMA MUTSUMI, YAMAZAKI KENJI
Format Patent
LanguageEnglish
Published 13.04.2007
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:In an endoscope apparatus of the present invention, while observing a body cavity tissue under narrowband light via a second filter group of a rotating filter, a G2 filter section, B2 filter section, and shading filter section change illumination light to narrowband surface-sequential light of two bands of discrete spectral characteristics, and an image-capturing signal captured by a CCD via the B filter section constitutes a band image having superficial layer tissue information, and an image-capturing signal captured by a CCD via the G filter section constitutes a band image having intermediate layer tissue information. This produces tissue information of a desired depth in the vicinity of a superficial portion of a mucous membrane using an inexpensive and simple configuration.
Bibliography:Application Number: KR20077004702