To possess with arm 10a and mount section 10c and nail 10b, the inspection body picking tool 4 where the basic edge of arm 10a is locked and inspection body picking tool 4 inside the tube 3 which movement unrestrictedly is accommodated and, to possess on front and back, at least tube 3 compared to enlarging diameter to do nail 10b, outside diameter direction R inspection body picking tool with the relative movement of 4 and tube 3, after the enlarging diameter, as for arm 10a, the case of enlarging diameter the inspection body picking tool relative movement of 4 of opposite and tube 3By, it is accommodated in tube 3.腕部10aと、載置部10cと、爪部10bとを有し、腕部10aの基端が固定された検体採取具4と、検体採取具4が内部に前後に移動自在に収容されたチューブ3と、を具備し、少なくとも爪部10bは、検体採取具4とチューブ3との相対移動により、チューブ3よりも径方向Rの外側に拡径し、拡径後、腕部10aは、拡径の際とは逆の検体採取具4とチューブ3との相対移動により、チューブ3に収容される。
