Medela breast pump is very convenient to clean if it is a reflux catheter or a reflux host. Rinse the hose with clean water first, then throw the water out by hand, then plug the hose into the main engine, open the main engine and let the main engine idle, and the water in the hose can be emptied.
The reason why the breast pump returns to the catheter or the main machine is probably because the yellow valve and the small white piece were not taken down for disinfection when the small white piece was disinfected. However, milk is a little sticky, which easily leads to adhesion between the two, and the slow flow of milk into the bottle will lead to reflux.
In addition to product problems, it is also possible that the mother's milk is relatively large, and the milk sucked out is too much and too fast, which will lead to the milk not flowing into the bottle quickly, resulting in reflux.
It is suggested that when using medela breast pump, the upper body should be kept as straight as possible, and the bottle should not be screwed too tightly. In case of breast overflow during breast pumping, it is suggested to reduce the vacuum intensity to avoid the backflow of catheter and host.