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这种泵可避免生物液在唧送时受到损伤。当托架4和齿轮5绕固定轴3转动时,齿轮5的齿便沿挠性齿轮2唧送生物液,并使齿轮2变形,同时使蠕动器1把生物液向前移动,该生物液通过进口管到达蠕动泵的压送线上。当压力超过允许值时,弹黄7产生变形,托架4便抬起而不使齿轮2变形,从而生物液也不再移动。泵的工作用量是由螺母6调节弹簧7的预压缩状态来调节的。
This pump prevents the biological fluid from being damaged while it is being pumped. When the carriage 4 and the gear 5 are rotated around the fixed shaft 3, the teeth of the gear 5 pound the biological fluid along the flexible gear 2 and deform the gear 2 while moving the peristaltic 1 to move the biological fluid forward, Through the inlet pipe to reach peristaltic pump pressure delivery line. When the pressure exceeds the allowable value, the spring 7 is deformed, the carriage 4 is lifted without deforming the gear 2, and the biological fluid is no longer displaced. The working amount of the pump is adjusted by the nut 6 adjusting the pre-compression state of the spring 7.