The application discloses a
spinous process anti-loose
balloon catheter, which comprises an inner tube, a tip tube, an outer tube, a
balloon unit, a proximal fixed sleeve, a proximal movable sleeve, a distal sleeve and three
spinous process ribs, the distal end of the
spinous process rib is fixedly connected with the distal sleeve, the proximal end of the spinous process rib is fixedly connected with the proximal movable sleeve, the distal sleeve is fixedly connected with the tip tube, the proximal movable sleeve is penetrated by the outer tube and can move relative to the outer tube, the proximal fixed sleeve is fixedly connected with the outer tube, and an elastic belt is arranged between the proximal end of each spinous process rib and the proximal fixed sleeve. When the
balloon catheter of the application is inflated, the spinous process ribs can be in a
normal state and the balloon is extruded, and when the balloon is depressurized, the spinous process ribs can be effectively constrained, which is favorable for the withdrawal of the balloon.