Patent ID: 8382660
Filing Date: 2013-02-26
Classification: A61B,A61M

Abstract:
1. An endoscope system comprising: an endoscope having an insertion section extending from an operation section operated by an operator into a human body, and an operation channel having a first end section 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 connected to a connecting pipeway branching from a branch section formed in the vicinity of the second end section in the operation channel, and capable of seizing tissue retracted into the operation channel; an aspirator for producing suction force for suctioning the tissue into the operation channel; and a suction pipeway connecting the tissue-collecting apparatus to the aspirator, wherein the tissue-collecting apparatus has: a tissue-collecting case having a first chamber connected to the connecting pipeway, a second chamber connected to the suction pipeway, and a communication path provided between a lateral wall of the first chamber and a lateral wall of the second chamber to cause the first chamber to communicate with the second chamber; and a tissue-collecting filter detachably enclosed in the first chamber, the first chamber comprises the lateral wall of the first chamber being formed in a cylindrical shape and a bottom section formed in a planar shape, and a distance between the bottom section of the first chamber and an opening of the communication path which opens in the first chamber is shorter than a distance between a bottom section of the second chamber and an opening of the communication path which opens in the second chamber.