PROBLEM TO BE SOLVED: To provide a medical treatment instrument which can improve unity of a field of vision and an image and can simplify operation.SOLUTION: A medical treatment instrument 1 includes: a long insertion member 2 which can be bent in a prescribed direction and is inserted in a patients body an image transmission member 3 which has an image acquisition part 31 that acquires an image on an axial direction end side of the insertion member 2 an image direction setting part 4 which can set a direction of an image to a prescribed direction matched to an insertion part of the insertion member 2 with respect to a curvature direction of the insertion member 2 and an image rotation part 4 which rotates an image or the image transmission member 3 so that the image faces in the direction set by the image direction setting part 4.COPYRIGHT: (C)2015,JPO&INPIT【課題】視界と画像との一体感を向上させることができ、操作を容易にすることが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、所定方向に湾曲可能に構成され、患者の体内に挿入される長尺状の挿入部材2と、挿入部材2の軸方向先端側の画像を取得する画像取得部31を有する画像伝送部材3と、挿入部材2の湾曲方向に対して、画像の向きを挿入部材2の挿入部位に合わせた所定の向きに設定可能に構成された画像方向設定部4と、画像が画像方向設定部4で設定した向きとなるように画像または画像伝送部材3を回転させる画像回転部4とを備えている。【選択図】図1
