An instrument shaft of a surgical comprising a shaft ( 2 ) ( 1 ) , an opening devices with bifurcation at least one is supported on the movable ( 5 ) ( 3 ) is arranged at the distal end of the shaft with , the handling device is movable for operation of the proximal least one of the grip parts to end of the shaft ( 6 ) of opening devices ( 3 ) ( 4 ) has been arranged , at the distal end opening device ( 3 ) at the proximal end with is connected is connected to the handling unit ( 4 ), and the tension member ( 11 ) and the pressing member ( 12 tubular ) and transmission rod ( 7 having a ) is provided , both members ( 11, 12 ) can optionally be coupled to each other at each end , one of both members ( 11, 12 ) is made of a superelastic alloy , the shaft equipment for such surgical the pressing member ( 12 ) is not made of superelastic alloy , the tensile member ( 11 ) is characterized in that it is made of rope or wire made of a material non- superelastic .シャフト(2)を備える外科用のシャフト器具(1)であって、該シャフトの遠位端には少なくとも一方が可動に支承された分岐部(5)を有する開口装置(3)が配置されるとともに、該シャフトの近位端には少なくとも1つの握り部分(6)が開口装置(3)の操作のために可動である取扱装置(4)が配置されていて、遠位端で開口装置(3)と連結されるとともに近位端で取扱装置(4)と連結され、引張部材(11)と管状の押圧部材(12)とを有する伝達ロッド(7)が設けられていて、両方の部材(11、12)は各端部で相互に結合されていて、両方の部材(11、12)のうちの一方は超弾性合金でできている、そのような外科用のシャフト器具は、押圧部材(12)が超弾性合金でできていて、引張部材(11)は超弾性でない材料からなるロープまたはワイヤでできていることを特徴とする。
