Breast pump and breast pump assembly

Abstract

The invention discloses a breast pump and a breast pump assembly, belonging to the field of breast pump equipment. The breast pump provided by the invention comprises a shell, a milk containing device capable of expanding and shrinking and a milk suction cover communicating with the milk containing device, wherein the shell is provided with a cavity used for containing the milk containing device and an air pump assembly used for alternately pumping out air or introducing the air into the cavity, and when the milk containing device is placed in the cavity, the cavity is closed. For the breast pump, the milk containing device capable of expanding and shrinking is taken as a milk storage bag, the milk containing device capable of expanding and shrinking can be used for containing milk in the milk sucking process, also can transfer the suction force generated by negative pressure during the milk sucking operation, so that the milk suction operation can be carried out, and also can rapidly collect and store the milk after the milk sucking operation is completed, the milk is conveniently and efficiently sucked out and then directly stored, so that the secondary pollution and waste of breast milk can be avoided, and the breast pump has the advantages of being simple and compact in structure, good in air tightness, long in service life, convenient to carry and use, and easy to disassemble and clean. The invention further provides a breast pump assembly comprising the breast pump.

Description

technical field [0001] The invention relates to the field of breast pump equipment, in particular to a breast pump and a breast pump assembly. Background technique [0002] A breast pump is an essential item for lactating women. It is mainly used to squeeze out the milk accumulated in the mammary gland. Using a breast pump can dredge the mammary gland on the one hand and prevent excess milk from accumulating in the mammary gland to form a lump or cause inflammation. , on the other hand, the excess milk can be pumped out and stored, which is convenient for breastfeeding the baby who cannot suck the milk, or breastfeeding the baby when the mother is away. [0003] Such as figure 1 or figure 2 As shown, most of the existing automatic breast pumps include a milk bottle 101, a breast shield 102 connected with the milk bottle 101, a backflow prevention cylinder 103 connected with the breast shield 102 (i.e. a diaphragm, made of soft materials such as silica gel) ), the pump 10...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned automatic breast pump is not only complex in structure, but also has many parts and is vulnerable to damage. It is inconvenient to disassemble, use and transfer milk. The anti-reflux kit 103, breast shield 102, duckbill one-way valve 106, and milk bottle 101 are sterilized, and the airtightness of the product is easily damaged when reassembled after disinfection, and the airtightness of the components is likely to be damaged after long-term use , affect the milk pumping effect and easily pollute the milk

The service life of the anti-backflow cylinder 103 and the duckbill check valve 106 is relatively low, requiring frequent replacement and purchase of new parts also affects the user experience and increases the cost of use. In addition, the negative pressure generated by the suction of the pump 104 needs to be transmitted twice. The duckbill one-way valve 106 cannot be absolutely sealed, and the duckbill one-way valve 106 itself will generate deformation and lose part of the negative pressure, the space for the anti-backflow cylinder 103 is small, and the conversion of the power of the pump 104 to the actual working power of breast pumping Low efficiency, which consumes energy and affects milk expression

The breast shield 102 cannot be simply replaced according to different breast sizes, which may easily cause damage to breastfeeding, and the milk bottle 101 is made of plastic, so long-term contact of milk with plastic is not conducive to safe breastfeeding

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