| abstract |
(57) [Problem] To remove a foreign substance such as a calculus with a single treatment procedure in a minimally invasive manner and without damaging the inner wall of a lumen even if the target foreign substance is relatively large. The present invention provides a catheter for removing foreign substances that can be used. Kind Code: A1 A catheter tube, a slide member movably inserted in a lumen of the catheter tube in an axial direction, and a cylindrical member made of an elastic body, one end of which is at the distal end of the catheter tube, and the other end of which is a slide member. At the tip, Each has a balloon fixed so that the inside of the cylinder can be air-tight or liquid-tight, and a connection part of a pressurizer that expands and contracts the balloon by adjusting the pressure in the cylinder of the balloon. The problem is solved by wrapping and removing with a balloon. |