A system for collecting a sample of a liquid, the system including a liquid storage vessel including an opening, and a capping element configured to seal the opening of the storage vessel is provided. The capping element includes a chamber configured to store a sample of the liquid separate to the liquid storage vessel. The capping element includes a pipette element defining the chamber that is configured to store the sample of liquid taken from the storage vessel.

A method for operating a breastpump unit for expression of human breastmilk and various breast shields for use in this method allow a maximum pumping performance and a minimum pumping duration per pumping session. The breast shield has an inner chamber for receiving a nipple of the breast and also at least one outer chamber which at least partially surrounds the nipple. The inner chamber is subjected to a constant pressure and the at least one outer chamber is subjected to a pulsating pressure.

A method for operating a breastpump unit for expression of human breastmilk and various breast shields for use in this method allow a maximum pumping performance and a minimum pumping duration per pumping session. The breast shield has an inner chamber for receiving a nipple of the breast and also at least one outer chamber which at least partially surrounds the nipple. The inner chamber is subjected to a constant pressure and the at least one outer chamber is subjected to a pulsating pressure.

An integrated breast pump includes a housing, a triple valve integrated with the housing, a breast adapter, a negative pressure generation device, a negative pressure transmission element and an one-way valve. The triple valve includes a liquid inlet, a liquid outlet and a negative pressure port. The breast adapter includes a liquid guiding outlet and is detachably connected with housing. The liquid guiding outlet communicates with the liquid inlet. The negative pressure generation device includes a pumping port and is configured for providing negative pressure periodically. The negative pressure generation device is detachably connected with housing, and the pumping port is disposed towards the negative pressure port. The negative pressure transmission element is disposed in the negative pressure port and communicates with the pumping port. The negative pressure transmission element is configured for generating deformation periodically according to the negative pressure. The one-way valve is connected with the liquid outlet.

An integrated breast pump includes a housing, a triple valve integrated with the housing, a breast adapter, a negative pressure generation device, a negative pressure transmission element and an one-way valve. The triple valve includes a liquid inlet, a liquid outlet and a negative pressure port. The breast adapter includes a liquid guiding outlet and is detachably connected with housing. The liquid guiding outlet communicates with the liquid inlet. The negative pressure generation device includes a pumping port and is configured for providing negative pressure periodically. The negative pressure generation device is detachably connected with housing, and the pumping port is disposed towards the negative pressure port. The negative pressure transmission element is disposed in the negative pressure port and communicates with the pumping port. The negative pressure transmission element is configured for generating deformation periodically according to the negative pressure. The one-way valve is connected with the liquid outlet.

The present disclosure discloses an assembling-facilitated breast pump, including, a main body, a milk flowing member and a breast cover; the main body includes a suction assembly and a milk storage container; the suction assembly is detachably connected to the milk storage container a negative pressure tank is arranged in the milk storage container; the suction assembly is communicated to the negative pressure tank; the entire main body is hemispherical; the milk flowing member is hermetically plugged, into the negative pressure tank; one end of the milk flowing member is provided with an opening; a side of the milk flowing member close to the opening is provided with a milk outlet; the milk outlet is used for being communicated to an accommodating cavity of the milk storage container; and a narrow end of the breast cover is hermetically plugged to the opening.

The present disclosure discloses an assembling-facilitated breast pump, including, a main body, a milk flowing member and a breast cover; the main body includes a suction assembly and a milk storage container; the suction assembly is detachably connected to the milk storage container a negative pressure tank is arranged in the milk storage container; the suction assembly is communicated to the negative pressure tank; the entire main body is hemispherical; the milk flowing member is hermetically plugged, into the negative pressure tank; one end of the milk flowing member is provided with an opening; a side of the milk flowing member close to the opening is provided with a milk outlet; the milk outlet is used for being communicated to an accommodating cavity of the milk storage container; and a narrow end of the breast cover is hermetically plugged to the opening.

A breast pump includes a main body and a breast milk suctioning shield. The main body has an accommodation space. The breast milk suctioning shield is assembled in the accommodation space and detachably connected to the main body. A front end of the breast milk suctioning shield has a breast shielding portion, and a nipple passage extends from a rear end of a center portion of the breast shielding portion. One or more deformable members are assembled with an annular connection portion between the breast shielding portion and the nipple passage, and the deformable member is controlled to be inflated or deflated by a first air pump.

A breast pump includes a main body and a breast milk suctioning shield. The main body has an accommodation space. The breast milk suctioning shield is assembled in the accommodation space and detachably connected to the main body. A front end of the breast milk suctioning shield has a breast shielding portion, and a nipple passage extends from a rear end of a center portion of the breast shielding portion. One or more deformable members are assembled with an annular connection portion between the breast shielding portion and the nipple passage, and the deformable member is controlled to be inflated or deflated by a first air pump.

A breast pump includes a main body, a breast milk suctioning shield, and one or more air pumps. The breast milk suctioning shield is assembled in an accommodation space of the main body and detachably connected to the main body. A front end of the breast milk suctioning shield has a breast shielding portion, and a nipple passage extends from a rear end of a center portion of the breast shielding portion. One or more deformable members and a non-deformable supporting member are assembled with an annular connection portion located between the breast shielding portion and the nipple passage. The air pump has an intake port and an exhaust port. The intake port is controlled by a first valve controller to suction the nipple passage and generate a negative pressure, and the exhaust port is controlled by a second valve controller to inflate or deflate the deformable member.