A root canal obstruction removal instrument is presented, which includes a tube and a plunger. The tube has a movable slot inside for setting the plunger, which can move along the axis of the tube and has a clamping section in one end. The clamping section has a hole and at least one groove. The grooves penetrate the hole. The clamping section increases its circumference progressively to become cone shaped, and the outer circumference of the clamping section is larger than the inner circumference of the tube.一種根管阻塞物移除器具,係包含:一套管,內部設有一活動槽;及一夾取件,設於該活動槽中,並能夠相對於該套管產生軸向位移,該夾取件一端形成有一夾掣段,該夾掣段設有一槽孔及至少一開放溝槽,該開放溝槽與該槽孔相連通,該夾掣段係形成擴徑之錐狀態樣,該夾掣段之外徑大於該套管之內徑。1...套管11...活動槽12...推移部2...夾取件21...夾掣段211...槽孔212...開放溝槽22...手持部
