< Topic >Of the interposition section and alteration of the physical relationship of the arm and the handle being possible, the retractor which can optimize the operation attitude of the doctor is offered.SolutionsInterposing in the incision region, the interposition section the arm to be provided in the handle 3 which possesses the ring section 7 which and makes 2 which provides 6 which it flares and interposition section 6 in the Tip and the said arm open 2 and the said handle 3 in order the said handle 3 consist of with the lock feature 10 of fixed possibility in firm state, aforementioned interposition section 6 to constitute, being crooked the Tip 22 to side view L die form vis-a-vis base, 21 as it forms, the Tip 22 to cross vis-a-vis arm 2, being located, time motion to install aforementioned base 21 unrestrictedly in the Tip of arm 2 with abscissa 23, aforementionedThe angle for the arm 2 of interposition section 6 alteration the retractor which is formed unrestrictedly.< Choice figure >Drawing 1【課題】挿入部とアームおよびハンドルとの位置関係の変更が可能で、医師の手術姿勢を最適化できる開創器を提供する。【解決手段】切開部位に挿入して押し広げる挿入部6と、挿入部6を先端に設けたアーム2と、該アーム2を開閉させるリング部7を有するハンドル3と、該ハンドル3に設けられ該ハンドル3を不動状態に固定可能のロック機構10とからなり、前記挿入部6は、基部21に対して先端22を側面視L型形状に屈曲させて形成すると共に、先端22をアーム2に対して交差するように位置させて構成し、前記基部21を横軸23によりアーム2の先端に回動自在に取付け、前記挿入部6のアーム2に対する角度を変更自在に構成した開創器。【選択図】図1
