is a variation of the amount of collected when collecting the living tissue from bio-hole has been reduced It provides a biological tissue collection device. Biological tissue collection device 10 of the present invention, which has a first space therein, has a first sampling opening 2 in the wall, the outer casing 3 of the insertable shape biological hole in said first space disposed in the first space so as to be movable, and a collecting portion 15 for collecting a portion of the inrush living tissue into the first space from the first sampling opening 2 is connected to a collecting section 15, collecting portion It has 15 and the operation section 7 which operated from the outside of the exterior body 3 a,生体孔から生体組織を採取する際の採取量のばらつきが低減された生体組織採取具を提供する。本発明の生体組織採取具10は、内部に第一空間を有すると共に、壁面に第一採取開口部2を有し、生体孔に挿入可能な形状の外装体3と、前記第一空間内で移動可能なように前記第一空間に配置され、かつ第一採取開口部2から前記第一空間に突入した生体組織の一部を採取する採取部15と、採取部15に連結され、採取部15を外装体3の外部から操作する操作部7と、を有する。
