PROBLEM TO BE SOLVED: To provide a work length setting/measuring tool of a medical instrument which is used in setting a work length of a medical instrument, is compact, has a scale easy to see, facilitates accurate setting, and further is manufactured relatively inexpensively.SOLUTION: A work length setting/measuring tool of a medical instrument is composed of: a stopper setting tool body 11 including a measuring body 3 provided with scales 17 and numerical values 18 and a work length setting member 4 including a work length setting mark 29. The work length setting member 4 can move parallel along an axial center direction of the measuring body 3. For setting a work length setting tool such as a rubber stopper 35 attached on a root canal instrument 5 at a desired length, a fixing tool 24 is arranged which is capable of fixing the measuring body 3 and the work length setting member 4 at an arbitrary position.SELECTED DRAWING: Figure 6COPYRIGHT: (C)2016,JPO&INPIT【課題】医療用器具の作業長さを設定する際に使用するコンパクトで目盛が見やすく、正確に設定しやすく、さらに比較的安価に製造できる医療用器具の作業長さ設定・計測具を提供する。【解決手段】 目盛17と数値18を付与した計測体3を備えたストッパー設定具本体11と作業長さ設定用目印29を付与した作業長さ設定部材4から構成される。作業長さ設定部材4は計測体3の軸心方向に沿って平行移動可能で、根管用器具5に装着したラバーストッパー35等の作業長さ調整具が所望の作業長さに設定できるように、計測体3と作業長さ設定部材4とを任意の位置で固定可能な固定具24を有する。【選択図】図6
