PROBLEM TO BE SOLVED: To provide a medical treatment tool which can be inserted into a human body easily.SOLUTION: A medical treatment tool 1 has an insertion tube 3 inserted into the body of a patient, an image information acquisition unit 6 that is inserted into the insertion tube 3 so that it is freely removed therefrom, and conveyance paths 4A, 4B that are provided in communication with the insertion tube 3 halfway through the insertion tube 3, and convey a conveyed body in the insertion tube 3. During the conveyance of a conveyed body by the conveyance paths 4A, 4B, the image information acquisition unit 6 can evacuate to a base end side in the insertion direction of the insertion tube 3 relative to the conveyance paths 4A, 4B.COPYRIGHT: (C)2015,JPO&INPIT【課題】体内に容易に挿入できる医療用処置具を提供すること。【解決手段】医療用処置具1は、患者の体内に挿入される挿入管3と、挿入管3に挿抜自在に挿入される画像情報取得部6と、挿入管3の途中に当該挿入管と連通して設けられ、挿入管3内の被搬送物を搬送する搬送路4A、4Bとを備え、搬送路4A、4Bによる被搬送物の搬送時に画像情報取得部6が搬送路4A、4Bよりも挿入管3の挿入方向の基端側に退避可能とされている【選択図】図1