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Elektrisk brystpumpe utformet for å simulere et spedbarns amming
Elektrisk brystpumpe utformet for å simulere et spedbarns amming
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机译:电动吸奶器设计用于模拟婴儿母乳喂养
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摘要
An electric breast pump utilizes an electric motor to drive a piston vacuum pump to draw a negative pressure or suction up to 250 mm Hg at a flexible collapsible breast cup. The suction cycles between the set maximum and atmospheric under the control of a magnetic valve that is opened and closed by a vacuum sensor. The valve opens and closes a bypass to atmosphere. The speed of the electric motor can be selectively varied to increase the frequency of the suction cycles, which can vary between 20 to 44 cycles per minute. The breast cup collapses during a part of each cycle to simulate the peristaltic action of a suckling infant.
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机译:电动吸奶器利用电动机来驱动活塞真空泵,以在柔性可折叠吸奶杯上产生负压或抽吸高达250 mm Hg的压力。在由真空传感器打开和关闭的电磁阀的控制下,吸气周期在设定的最大值和大气之间。阀门打开和关闭通向大气的旁路。可以有选择地改变电动机的速度以增加抽吸循环的频率,该抽吸循环的频率可以在每分钟20至44个循环之间变化。乳杯在每个周期的一部分期间会塌陷,以模拟婴儿的蠕动行为。
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