The present invention is a compact and hands-free human breast milk collection device that fits into a mothers existing nursing or standard brassiere. The invention can be attached to a conventional electric or manual pump for active milk collection and also can be used without a pump for passive milk collection. Additionally, the invention can be used for collection of hand-expressed milk. The invention comprises a breast adaptor which, in an embodiment, has at one end a funnel-shaped inlet coupled to a reservoir, wherein when the breast is inserted into the breast adaptor, the breast milk is expressed into the reservoir through a unique valve assembly and the milk is stored in the reservoir until the device is removed and the collected milk emptied into a container. In an embodiment, the valve assembly is mounted concentrically on a second end of the breast adaptor. The valve assembly alternately opens and closes communication between the breast adaptor and the reservoir. The valve assembly further includes an overflow chamber and a baffle structure to prevent backflow of milk into the pump and associated vacuum or suction line. The invention, in an embodiment, also includes a unique connection apparatus that enables the vacuum hose of the disclosed breast milk collection device to be sealingly attached to a vacuum hose of varying sizes attached to a vacuum pump mechanism.
