Abstract: An indwelling device that includes a hollow tubular body having a first end and a second end, and the first end is made of an elastic member.

Abstract: Embodiments disclosed herein relate to an aspiration catheter comprising a catheter body that can have a first end and a second end and an aspiration lumen extending through the catheter body. The aspiration lumen can have an aspiration opening located in a distal portion of the aspiration catheter. The catheter can have an assistive jet element extending through a wall of the aspiration lumen. The assistive jet element can have an assistive jet channel. The assistive jet element can be adaptable to draw blood through the assistive jet element from a location outside of the catheter body adjacent to the assistive jet element and into the aspiration lumen when suction is applied to the aspiration lumen and can be configured to break apart a thrombus or obstruction in the aspiration lumen.

Abstract: A guidewire includes a core shaft, a hollow coil body, and a hollow resin body. The core shaft includes a distal portion, a proximal portion, and a center portion that is sandwiched between the distal portion and the proximal portion. The hollow coil body covers the distal portion when the distal portion is enclosed within the hollow coil body. The hollow resin body covers the center portion when the center portion is enclosed within the hollow resin body. The center portion has a tapered shape such that the diameter of the center portion decreases from a proximal end portion side of the center portion toward a distal end portion side of the center portion, and a rigidity of the hollow resin body is higher than a rigidity of the hollow coil body.