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US5536236A Covered endoscope system 失效
内窥镜系统

Covered endoscope system
摘要:
A covered endoscope system according to the present invention comprises a cover and a coverable endoscope to be inserted into the cover for use. Herein, an optical filter is mounted in the distal part of a cover abutting on the front of an observation optical system of the coverable endoscope.
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