Abstract: The present invention relates to a breast status determination device (10?). The breast status determination device (10?) comprises a breast shield (16?), a nipple elongation measurement unit (17?), and a breast status determination unit (20?). The breast shield (16?) can receive abreast (12) of a user (14) therein. The nipple elongation measurement unit (17?) can measure an elongation of a nipple of the breast (12) received in the breast shield (16?) for a specific pressure in the breast shield (16?) during a milk extraction session. The breast status determination unit (20?) can determine a status of the breast (12) based on the elongation of the nipple (26). The breast status determination device (10?) can allow estimating of milk left in the breast during the milk extraction session, when the breast (12) is empty, and whether a milk ejection reflex is present or absent in the breast (12).

Abstract: A breast pump (100) is provided comprising a vacuum pump (120) which is configured to be operated at different vacuum profile settings, a controller (140) configured to control an operation of the vacuum pump (120) based on the different vacuum profile settings, and a breast fullness estimator (150) configured to estimate a fullness of a breast based on a duration of a milk expression session. The controller (140) is configured to select a vacuum profile setting based on the breast fullness estimation of the breast fullness estimator (150). Hence, the efficiency of the breast pump is increased as the operation of the vacuum pump is adapted to the estimated breast fullness.

Abstract: The present invention relates to a breast status determination device (10?). The breast status determination device (10?) comprises a breast shield (16?), a nipple elongation measurement unit (17), and a breast status determination unit (20?). The breast shield (16?) can receive abreast (12) of a user (14) therein. The nipple elongation measurement unit (17) can measure an elongation of a nipple of the breast (12) received in the breast shield (16?) for a specific pressure in the breast shield (16?) during a milk extraction session. The breast status determination unit (20?) can determine a status of the breast (12) based on the elongation of the nipple (26). The breast status determination device (10?) can allow estimating the amount of milk left in the breast during the milk extraction session, when the breast (12) is empty, and whether a milk ejection reflex is present or absent in the breast (12).