PROBLEM TO BE SOLVED: To provide high-performance bending forceps having high flexibility and a wide movable range of a tip end holding part, while retaining a structure of holding opening/closing operation and bending operation of the tip end holding part.SOLUTION: The high-performance bending forceps include: an opening/closing operation handle 1 disposed at a proximal end a shaft 2 extending from the opening/closing handle to a distal side a bendable reference holding piece 3 disposed at a tip end of the shaft and an openable/closable opening/closing holding piece 4. The high-performance bending forceps further include: a reference holding piece bendably supported by a bending/tilting support shaft and a bending drive mechanism, at the tip end part of the shaft the shaft of multi-tube structure comprising, an opening/closing drive transmission member forward/backward-movably inserted into the shaft and connected to the opening/closing drive mechanism, and a bending drive transmission member forward/backward movably inserted in the opening/closing drive transmission member and connected to the bending drive mechanism and the opening/closing operation handle 1 locking the shaft that includes the opening/closing drive transmission member and the bending drive transmission member.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】先端把持部が把持開閉動作と屈曲動作の構造を維持しつつ、先端把持部の自由度が多いとともに可動範囲が広い高機能屈曲鉗子を提供する。【解決手段】近端部に配設された開閉操作ハンドル1と、開閉操作ハンドルから遠位側に伸びるシャフト2と、シャフトの先端部に配設された屈曲可能な基準把持片3と、開閉可能な開閉把持片4と、を有する高機能屈曲鉗子において、シャフトの先端部に、屈曲傾動支軸と屈曲駆動機構により屈曲可能に支持された基準把持片と、シャフト内に進退移動可能に挿通され、開閉駆動機構に連結される開閉駆動伝達部材と、開閉駆動伝達部材内に進退移動可能に挿通され、屈曲駆動機構に連結される屈曲駆動伝達部材からなる多重管構造のシャフトと、開閉駆動伝達部材と屈曲駆動伝達部材とを内設した、シャフトを係止した開閉操作ハンドル1と、を有している。【選択図】図1
