Equipment and shaft having a proximal end and a distal end, a tool which is provided from the distal end of the instrument shaft, and a control handle disposed from the proximal end of the instrument shaft, a moving member terminal to be connected to the tool end of the instrument shaft , positioning the state of the tool can be connected to the moving member of the end the motion of the member of the proximal end so as to extend between a moving member of the proximal end that connects to the handle the proximal end of the instrument shaft, the movement member of the distal and proximal ends and activation means for controlling, fixed at a position selected the position of the tool, it is a surgical instrument and a locking mechanism having a locked state and an unlocked state.基端及び末端を有する機器シャフトと、機器シャフトの末端から配設されたツールと、機器シャフトの基端から配設された制御ハンドルと、機器シャフトの末端をツールに連結する末端の運動部材と、機器シャフトの基端をハンドルに連結する基端の運動部材と、末端及び基端の運動部材の間を伸びて基端の運動部材の運動を末端の運動部材に連結してツールの位置決め状態を制御する起動手段と、ツールの位置を選んだ位置にて固定し、ロック状態と、非ロック状態とを有するロック機構とを含む外科用機器である。
