A breast shield arrangement (300) for a breast pump comprises a first sealing portion (310), a port (320) and an intermediate portion (330) coupled between the first sealing portion (310) and the port (320). The intermediate portion (330) comprises a circumferentially extending wall defining a first volume (V1) which is adapted to receive a part of a breast, a first end (331), a curved portion (332) and a second end (333). The curved portion (332) comprises a second sealing portion (332c) which is adapted to at least partially seal the curved portion (332) against the nipple (310), the areola (320) or the breast (200) when a vacuum is applied at the port (320) creating a second volume (V2) between the first sealing portion (310, 332c) of the breast (200). The curved portion (332) at the second volume is curved outwardly as seen from the first sealing portion (310).

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 breast pump system having a suction tubing, a milk tubing, a pump, a three way vent valve, a milk bottle, an isolation valve and a breast shield, wherein the first end of the suction tubing and the first end of the milk tubing are fluidly connected to the pump; wherein the second end of the suction tubing and the second end of the milk tubing are fluidly connected to the breast shield; wherein the three way vent valve is fluidly connected between the pump and the breast shield on the suction tubing; wherein the milk bottle is fluidly connected on the milk tubing between the breast shield and the pump; and wherein the isolation valve is connected on the milk tubing between the milk bottle and the pump.

A breast milk collection device includes a reservoir volume and an adaptor having one end to receive a woman's breast. The adaptor has a drip tube communicating with the reservoir. A source of cyclical application and relief of vacuum force is applied to the woman's breast located in the adaptor for the expression of breast milk. A one-way assembly permits breast milk to enter the reservoir and to submerge the valve element. The valve assembly includes a flexible barrier having an interior hollow chamber in fluid communication with said cyclical source of vacuum force and relief pressure, the flexible barrier fluidly isolating the source from the reservoir. The flexible barrier inflatably expands when relief pressure is applied to the interior of the flexible barrier, the flexible barrier becoming deflated when a vacuum force is applied to the hollow interior of the flexible barrier.

A breastshield unit for use in a device for expressing human breastmilk employing underpressure with a breastshield body and a media separation device which separates expressed milk from an underpressure source arranged in the breastshield body, the media separation device having a through-channel which connects first and second openings of the breastshield body. The through-channel has a through-opening, which is enlargeable when subjected to an underpressure from outside. The through-opening is formed by walls which, when subjected to an underpressure from outside, are movable away from each other, largely without stretching, in order to enlarge the through-opening. The breastshield unit permits media separation with minimal dead volume, and with optimized comfort for the mother.

A hands-free breast pump system is disclosed. A breast shield having an adhesive inner surface for adhering to a woman's breast is disclosed. The breast shield may be connected to an adapter for transferring a vacuum generated by a pump to the breast. The adapter also allows milk expressed from the breast to drain from the adapter to a container. In the alternative, the breast shield may form part of a breast shield adapter system which is connected to a conventional breast shield by a drain line so that a conventional breast pump system is used to supply a vacuum and to collect the milk.

A breast shield arrangement (300) for a breast pump is provided. The breast shield arrangement comprises a breast receiving portion (300a) with a flexible collapsible funnel (301) and a rigid frame (340) which are made as a single unit by 2K manufacturing. The flexible funnel (330) has a circumferentially extending wall (301a). The breast receiving portion (300a) has a first and second end (310, 320). The flexible funnel (330) and the rigid frame (340) are connected at the first and second end (310, 320) of the breast receiving portion (300a) during a 2K manufacturing. The flexible funnel (330) is configured to collapse if a vacuum is applied to the breast receiving portion (300a).

A breast pump device and associated methods for extracting breast milk are disclosed. A pump head comprises an external shell with an elastic membrane disposed and bonded therein to define at least one hermetically sealed chamber. Manipulation of the elastic membrane, for example, by adjusting suction or pressure in the sealed chamber or within an interior volume defined by the elastic membrane permits radial mechanical compression (positive pressure) to be applied to a nipple positioned in the pump head to simulate compression of the nipple by the infant's tongue and simultaneously permits axial hydraulic or pneumatic suction (negative pressure) to be applied to the nipple to simulate the infant's minimum intra-oral vacuum. The breast pump device of the present invention can generate these simultaneous compressions and suctions with a single vacuum source, which may be an electric pump or a hand-operated mechanical pump.

Based in the field of breastfeeding, a breast pump apparatus (100) for expressing breast milk is disclosed. The breast pump apparatus (100) comprises a container unit (110) for receiving expressed breast milk, and a pump unit (120) including a pump body (130) and a pumping device (140) for applying negative pressure to a pump volume defined by the pump body (130). The pump body (130) comprises an inlet portion (132) adapted to be received on a female breast and an outlet portion (134) adapted to channel expressed milk to the container unit (110). The pump body (130) comprises an actuator element (200, 300, 400) comprising an active material capable of deforming upon application of a control signal to it, wherein deformation of the actuator element modifies at least one of a shape and size of the pump volume.

A progressive sequencing lactating breast milk extraction apparatus comprising a series of compression segments arranged forming a conical shape extending between a wider chest end and a narrower extracted milk collection end, at least one vibration generating apparatus in vibrational communication with at least one compression segment of the series of compression segments; and an operational mechanism to contract and expand each compression segment. In use, the operational mechanism cycles each compression segment of the series of compression segments between a compressed state and a relaxed state and the cycles are provided sequentially from a rear of the progressive sequencing lactating breast milk extraction apparatus to the extracted milk collection end. The vibrational energy applied to the breast aids in flow of the milk through the breast.