| 摘要 |
PROBLEM TO BE SOLVED: To provide an obturator not having an attached/detached separate part, allowing one-handed release of a state that a bumper is slenderly extended, and being able to prevent a situation of excessively pushing in the bumper.SOLUTION: An obturator 1 pinches a catheter 100 in a catheter pinch part 13 of the tip of an outer tube part 10, pushes an intermediate shaft part 20 inserted in the outer tube part 10 into the outer tube part 10, and slenderly extends a bumper 102 by a rod 22. A length of the rod 22 projecting from the tip of the outer tube part 10 is restricted by locking a stopper 23 annularly mounted to an operation shaft 21 to a locking groove 25 of the operation shaft 21, and movement of the intermediate shaft part 20 to a direction to which the rod 22 retreats into the outer tube part 10 is locked by locking a movable lock claw 12 provided near a holding part 11 of the base end side of the outer tube part 10 to the locking groove 25. |
