Abstract: A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an operating means for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.

Abstract: A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an operating means for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.

Abstract: A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an electromagnet for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.

Abstract: A barrier of a vacuum pump prevents contamination from entering a vacuum pump air line. The barrier separates parts of the pump and is moveable between an initial state and a distended state. The barrier is assembled within the pump with a pre-load. When the vacuum source is applied to the barrier, the barrier achieves a distended state and when the vacuum source is released, the barrier incrementally self returns to an initial state. The geometry and material construction of the barrier, along with the pre-load, assists in returning the barrier on its own to the initial state from the distended state.

Abstract: A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening (44, 54, 67), a bleed body (32) which seals the bleed opening and an operating means (8) for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. Said suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.

Abstract: A portable breast pump has a suction unit (1) and a collecting unit (A) which is connected to this suction unit via a flexible suction line (5). The collecting unit (A) comprises a breast shield (2), a milk-receiving container (4) and a coupling element (3) which connects the breast shield (2) to the milk-receiving container (4). The suction unit (1) has a housing (10) with an operating means (14) for operating the pump and a fastening means (15) for fastening the housing (10) on a carrying means (G, S), which can be fastened on the mother's body. This breast pump is easy to operate, allows the milk to be expressed even in confined areas with no set-down surfaces and, in addition, does not hinder the mother's mobility.