Abstract: A wire feeding device includes a grip portion that grips and releases the wire and moves in the distal end direction and a proximal end direction; a push spring that biases the grip portion toward the distal end direction; and a slider and a hook that deform the push spring and increase a biasing force. When the deformation of the push spring by the slider and the hook is released, the wire gripped by the grip portion is fed to the distal end direction by the biasing force from the push spring, and the wire feeding device is configured to be operated in (i) a first mode in which the wire is continuously fed in the distal end direction according to a first predetermined operation and (ii) a second mode in which the wire is fed once in the distal end direction according to a second predetermined operation.

Abstract: A wire feeding device feeding a guide wire includes a grip portion to grip the guide wire and move in the distal end direction. a hitting portion on the proximal end side of the grip portion and movable in an axial direction, an elastic body, a slider, an energizing portion, and a release portion. The hitting portion is configured to come into contact with and separate from the grip portion. The elastic body is to energize the hitting portion toward the distal end direction. The energizing portion deforms the elastic body and increases an energizing force on the hitting portion toward the distal end direction. The release portion releases a deformed state of the elastic body with the increased energizing force. When the hitting portion hits the grip portion by the increased energizing force released by the release portion, the gripped guide wire is fed toward the distal end direction.