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上海沪光仪器厂ESWL—Ⅱ型结石粉碎机,采用B超定位,体外震波,可治疗胆、胆总管及肾脏、输尿管结石;该机具有功能全、疗效好、定位准确、操作方便、自动化程度高等特点,是胆、肾结石患者理想的治疗仪器。 故障现象 在碎石治疗过程中,有时只有继电器的吸合和释放声,电极棒无放电现象,也就是“放空炮”,不能有效击碎结石。 分析与检修 电原理图如图所示,由于机器是出现间断放空炮,而不是根本不工作,所以引起该故障的原因大致有以下几种可能。(1)电容箱内的四个容量分别为0.4uF的充电电容有漏电现象。(2)电极棒尖端放电的间距过大。(3)电极球间距过大。(4)触发回路。
Shanghai Huguang Instrument Factory ESWL-II stone crusher adopts B-ultrasonic positioning, extracorporeal shock wave, can treat gallbladder, common bile duct and kidney, ureteral stones; this machine has complete functions, good curative effect, accurate positioning, convenient operation and automatic degree. Advanced features are ideal therapeutic instruments for patients with gallstones and kidney stones. Symptoms In the gravel treatment process, sometimes only the relay’s pull and release sound, the electrode rod no discharge phenomenon, that is, “airing gun” can not effectively crushed stones. Analysis and Maintenance The electrical schematic diagram is shown in the figure. Since the machine is intermittently vented and does not work at all, the causes of the failure are roughly as follows. (1) The four charging capacitors with a capacity of 0.4uF in the capacitor box have a leakage phenomenon. (2) The discharge distance of the tip of the electrode rod is too large. (3) The ball pitch is too large. (4) Trigger circuit.