PROBLEM TO BE SOLVED: To provide a surgical tool having a plurality of usage methods and reducing the number of times of attachment / detachment / replacement. SOLUTION: A surgical tool includes a treatment unit having a first treatment portion at one end and a second treatment portion at the other end, the first treatment portion and the second treatment portion. A holding portion for supporting the treatment unit is provided so that the usage state of the above can be switched. The holding portion can rotatably support the holding portion around an exchange shaft to switch between the usage state of the first treatment portion and the second treatment portion, and the first treatment portion and the first treatment portion are described. The treatment unit is supported so that one of the treatment units of 2 is in a usable state and the other is in a standby state. [Selection diagram] Fig. 7【課題】複数の使用方法を有し着脱交換する回数を削減する術具を提供する。【解決手段】術具は、第１の処置部を一方の端部に備えるとともに第２の処置部を他方の端部に備える処置ユニットと、前記第１の処置部と前記第２の処置部の使用状態を切り換え可能に前記処置ユニットを支持する保持部を具備する。前記保持部は、前記保持部を交換軸回りに回転可能に支持して前記第１の処置部と前記第２の処置部の使用状態を切り換えることができ、記第１の処置部と前記第２の処置部の一方が使用可能状態となり他方が待機状態となるように前記処置ユニットを支持する。【選択図】 図７
