BREASTSHIELD WITH MULTI-PRESSURE AND EXPANSIBLE CHAMBER CONSTRUCTION, RELATED BREASTPUMP AND METHOD

摘要

A breastshield (140) for breastmilk pumping comprises a rigid outer shield part having a left (142) and right (144) portions which join together; an inner shield part (143) mounted within said outer shield part, a flexible area formed on said inner shield part and capable of movement relative to a breast received within said breastshield; a first space (230) defined between said flexible area and said outer shield part; a first port (202) communicating with said first space to connect a source of fluid pressure to said space whereby application of a source of positive fluid pressure to said first space (230) causes said space to expand to thereby move said flexible area; a second port (206) communicating with said interior, whereby application of a source of negative pressure to said interior causes the breast to be pulled further into said interior.