| 摘要 |
An endoscope system includes: an endoscope having an insertion section (7) extending from an operation section (6) operated by an operator into a human body, and an operation channel (9) having a first end section (9A) having an opening at a distal end of the insertion section and a second end section passing through the insertion section and having an opening at the operation section; a tissue-collecting apparatus (23) connected to a connecting pipeway (18) branching from a branch section formed to the second end section in the operation channel, and capable of seizing tissue retracted into the operation channel; an aspirator (4) for producing suction force for suctioning the tissue into the operation channel; and a suction pipeway (10) connecting the tissue-collecting apparatus to the aspirator. The tissue-collecting apparatus has: a tissue-collecting case (24) having a first chamber (29) connected to the connecting pipeway, a second chamber (30) connected to the suction pipeway, and a communication path (31) provided to lateral walls of the first chamber and the second chamber and causing the first chamber to communicate with the second chamber; and a tissue-collecting filter (25) detachably enclosed in the first chamber
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