电动吸引器广泛用于医院手术室和妇产科及内外科，是临床不可缺少及经常使用的器械。在使用过程中因医生只顾抢救病人或只顾做手术，经常发生储液瓶溢满，使液体进人吸泵引起吸泵故障。这种情况已引起生产厂家的注意并采取相应的防溢措施。如在吸引器内增加控制电路，储液瓶盖 Electric aspirator is widely used in hospital operating room and obstetrics and gynecology and internal surgery. It is an indispensable and frequently used instrument for clinical practice. In the process of use, because the doctor only cares for the patient or only for surgery, the overflow of the reservoir bottle often occurs, causing the liquid to enter the pump and cause the suction pump to malfunction. This situation has caused the manufacturer’s attention and to take appropriate spill prevention measures. If add control circuit in aspirator, liquid bottle cap