Patent ID: 7976552

Claim:
A ligation apparatus including a ligation member which includes a clip and a fastener, the ligation apparatus comprising: an insertion tube extending toward one direction; a clamp part which is provided on a distal side of the insertion tube, the clamp part including a pair of clamp pieces which are openable and closable, and the clamp part being adapted to clamp a living organ; a first control mechanism connected to the clamp part via a first control shaft member inserted inside the insertion tube, which controls opening-and-closing action of the clamp part by advancing and retracting the first control shaft member; the ligation member which is provided on the distal side of the insertion tube and adapted to ligate the living organ by closing a pair of arm members of the clip by the fastener; a second control mechanism connected to the clip of the ligation member via a second control shaft member inserted inside the insertion tube, which controls opening-and-closing action of the pair of arm members of the clip and releasing action of the clip together with the fastener by advancing and retracting the second control shaft member; and a connection part which detachably connects between the clip of the ligation member and the second control shaft member, so as to be able to transfer both of an advancing force and a retracting force of the second control shaft member to the clip of the ligation member, wherein: the pair of arm members of the clip is openable and closable, and each of the clamp pieces having a passing section therein such that when the clamp pieces are closed, the pair of arm members of the clip can open and close and pass through the passing section, and wherein: when the second control shaft member is advanced, the clip of the ligation member opens; when the second control shaft member is retracted, the clip of the ligation member is closed by the fastener; and when the second control shaft member is further retracted after closing the clip of the ligation member, the clip is released together with the fastener from the second control shaft member.