Provided is a device 100 for capturing debris in blood vessel, which enables a filter member 3 to be smoothly recovered, and has simple structure leading to an easy operation. For this purpose, provided is an elastic steel wire 6 that, in a folded state, extends in a direction toward a base of a slide tube 21 from a fore end part of a holding part K in a ringlike elastic wire rod 31 along an outer side of the slide tube 21.
