Abstract: A breast pump device is disclosed. The breast pump device includes a main machine housing, a pump coupled to the main machine housing, a breast housing, a milk container, a tee pipe structure detachably attached to the breast housing and the milk container, and a suction diaphragm unit coupled between the pump and the tee pipe structure. The suction diaphragm unit is configured to provide negative pressure to express milk to the milk container via the tee pipe structure and while preventing liquid or moisture from entering the pump.

Abstract: The disclosure provides a breast pump, including a milk collecting assembly and a bowl member; the milk collecting assembly comprises a hard shell and a soft rubber inner cover; the soft rubber inner cover is in contact with a breast of a user when in use; the soft rubber inner cover is disposed on one side of the hard shell towards the breast, and the hard shell is detachably connected to the bowl member. The soft rubber inner cover has deformation ability. Under negative pressure, the soft rubber inner cover can squeeze the breasts, and the collected milk can flow out of the soft rubber inner cover into the milk bowl.

Abstract: Disclosed is a nasal aspirator, which includes a head portion provided with a first cavity inside, a reservoir connected to head portion and disposed in first cavity and provided with a second cavity inside, a drainage tube connected to head portion and extended from a first end of reservoir into second cavity and provided with a first air channel inside, an anti-reflux member abutted against a position between reservoir and head portion and/or a position between reservoir and drainage tube, and a negative pressure member. A third cavity is formed between reservoir and head portion. An end of anti-reflux member close to drainage tube is extended along an outer wall of drainage tube and towards a second end of reservoir, and the anti-reflux member is provided with a second air channel which communicates second cavity with third cavity. The negative pressure member is communicated with third cavity.