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在电动吸引器的基础上,仅需添置血压计前气阀、脚踩夹管器和三通各一个即可改装成电动负压瓶。它的主要优点是能避免污水污物进入缸体烧毁电机,使用时无噪声,用于人工流产尤为合适。改装时,先把电动吸引器(以上海医院设备厂出品的吸引器为例)的负压四通堵死通向负压调节器和负压表的二个通道,剩下二通分别连接泵进气口和机外吸气口。另取废旧听诊器中的三通一个,一头接气阀进气口,另两头分别接负压瓶出气口和机内负压
On the basis of the electric suction device, only need to purchase the sphygmomanometer front valve, the foot tube and the tee can be converted into a motorized negative pressure bottle. Its main advantage is to avoid sewage sludge into the cylinder burned motor, noise-free, especially suitable for abortion. When retrofitting, the first vacuum suction device (Shanghai Hospital Equipment Factory suction device as an example) of the negative four-way blocked negative pressure regulator and negative pressure gauge of the two channels, the remaining two connected to the pump Air inlet and outside air intake. Another waste of stethoscope in the three links, a gas valve inlet, the other two were negative pressure outlet and negative pressure within the machine