(57)< Abstract > < Topic > It is used for ideal for field of diagnosis, it exercises the operation arm (5) due to longitudinal direction or the action of curved line motion (F2), the substance (4) medium reeling processing (3) circles to operate the motion unrestricted the device in order one piston (2) at least (1) and the device (1) defective method of detection inside is offered to longitudinal direction. Solutions As for the device (1) the piston (2) and the intermediate element where the operation arm (5) is located between it has (6), this intermediate element (6) the aforementioned piston (2) and the aforementioned arm (5) carries out also the role of warning expedient when the aforementioned intermediate element (6) lacks between.【課題】 診断の分野に好適に用いられる、操作アーム(5)の長手方向または曲線運動(F2)の作用によって運動する、本体(4)の中繰り加工(3)部内を長手方向に運動自在な少なくとも1つのピストン(2)を作動させるための装置(1)及び装置(1)内の欠陥検出方法を提供する。【解決手段】 装置(1)はピストン(2)と操作アーム(5)の間に位置づけられた中間要素(6)を備え、この中間要素(6)が前記ピストン(2)と前記アーム(5)の間に前記中間要素(6)が欠如した場合の警告手段の役割も果たす。
