TISSUE CLOSING DEVICE

摘要

A tissue closing device includes an elongate arrangement device of which a distal end portion can penetrate an opening (e.g. wound hole) penetrating an living tissue membrane and which has a handling portion on the proximal side, and a clip which is detachably retained at a distal end portion of the arrangement device and which closes the opening. The arrangement device includes a retaining member (e.g. thread) for detachably retaining the clip and pulling the clip in the proximal direction, a cover tube, and a fixed tube. The handling portion has a first elastic member (e.g. coil spring). When a restriction for maintaining the coil spring in a deformed state (i.e. active state) is canceled, the thread is moved to the proximal direction by the restoring force of the coil spring in the condition where the clip is locked to a distal end portion of the fixed tube, and the clip is pulled in the axial direction by the thread, whereby a deformation portion is deformed.