山东新华医疗器械厂生产的 FC_o5000型~(60)钴远距离治疗机,其钴源限位装置改装后,虽在回源起步、源位重复性等方面较前为优,但因乌纱帽形缓冲器设计上存在缺陷,反而常出故障。故障主要发生在两只固定用帽翼根部。因设计上根部过薄而狭窄,机械强度不够,承受 FC_o5000 type ~ (60) cobalt remote treatment machine produced by Shandong Xinhua Medical Instrument Factory has a better precedence in terms of starting source and repeatability of source position after its cobalt source limiting device is modified, There are flaws in the design, but often fail. The fault occurred mainly in the two fixed cap wing roots. Due to the design of the root too thin and narrow, mechanical strength is not enough, to bear