Bilateral rotary union and electric breast pump

Abstract

The invention provides a bilateral rotary union and an electric breast pump, and relates to the technical field of maternal and infant tools. The bilateral rotary union comprises a union body, the union body forms a three-way passage and a decompression passage, the three-way passage comprises a main passage and two branch passages, the main passage is communicated with a vacuum negative pressurepump, a decompression mouth of the decompression passage is smaller than an air outlet of the decompression passage, and the decompression mouth is directly communicated with the outside air; when theelectric breast pump is in a bilateral sucking state, each branch passage is communicated with a milk collector through a first flexible pipe, and the decompression passage is not communicated with the main passage and the two branch passages; when the electric breast pump is in an unilateral sucking state, one branch passage is communicated with a milk collector through a first flexible pipe, and the other branch passage is communicated with the air outlet of the decompression passage through the other first flexible pipe. According to the bilateral rotary union, it can be avoided that negative suction is excessive so as to lead to a phenomenon of breast pain when the bilateral sucking state is switched to the unilateral sucking state.

Description

technical field [0001] The invention relates to the technical field of maternity and infant appliances, in particular to a double-sided adapter and an electric breast pump. Background technique [0002] An electric breast pump is an instrument for postpartum use by pregnant women, and refers to a tool for expressing (sucking) the breast milk accumulated in the mammary gland. Change the internal air pressure through the internal vacuum negative pressure pump, that is, cycle "suction" - "release" to imitate the action of a baby sucking breast milk. With regard to existing electric breast pumps, there are two structural modes of unilateral breast pumps and bilateral breast pumps. Unilateral breast pump: a vacuum negative pressure pump connected to a three-way collector; double-sided breast pump: a vacuum negative pressure pump connected to two three-way collectors. [0003] When breastfeeding mothers actually use it, they sometimes use a single-sided breast pump, and sometime...

AI Technical Summary

Problems solved by technology

[0003] When breastfeeding mothers actually use it, they sometimes use a single-sided breast pump, and sometimes use a double-sided breast pump, but most of the breast pumps on the market only suck milk on one side or only suck on both sides. Some devices that can be switched between single and double sides are complicated to operate. When using a double-sided breast pump for unilateral breast pumping, due to the large air flo...

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