Patent ID: 7806903

Claim:
A clipping instrument for an endoscope, comprising: a flexible sheath to be inserted into an instrument channel of the endoscope; an operation wire, which is configured to be forwarded and retracted in an axial direction of the flexible sheath; at least one detachable clip assembly, including a pair of openable and closable clipping arms and a fastening ring to encircle proximal portions of the clipping arms, arranged in vicinity of a distal end portion of the flexible sheath with the clipping arms closed, the clipping arms being configured to be projected forward to open outside the flexible sheath and to be closed to clip onto a treatment object outside the flexible sheath according to forwarding and retracting movements of the fastening ring through the operation wire; a sleeve formed to have a plurality of slits and arranged at the distal end portion of the flexible sheath; and a blade spring piece to be attached to the sleeve, having a plurality of blade springs, each of which is settled in one of the plurality of the slits of the sleeve when the blade spring piece is attached to the sleeve, wherein the plurality of blade springs can resiliently hold the detachable clip assembly, being projected out of the flexible sheath, in a posture with respect to the flexible sheath.