| 主权项 |
1. Manual breast milk pump comprising
a housing (2), which
has a cup-like displacement chamber (3),has a connection channel (8), which has an inlet opening (16) on the top and an outlet opening (17) on the bottom, and is connected in a communicating manner with a bottom part of the displacement chamber (3) between the inlet opening (16) and the outlet opening (17) andhas means for a releasable connection (23) of the housing (2) with an opening edge (73) of a milk collection container (71), the milk collection container (71) connected with the means for releasable connection (23), a suction bell (18), which is designed to receive a part of a breast and is connected with the inlet opening (16) of the connection channel (8), a cup-like membrane element (27) made of an elastomer material, which has on its upper edge (31) first means for releasable and sealing connection (32, 33), which are connected in a releasable and sealing manner with an upper edge of the displacement chamber (3), a coupling element (36), which has a coupling rod (37), which is connected on the bottom to a bottom (28) of the cup-like membrane element (27), and said coupling element having a spherical head (43), which is connected with the upper end (37) of the coupling rod and protrudes laterally over the coupling rod (37), a lever (45) with a first lever arm (48) and second lever arm (49), wherein the second lever arm (49) comprises a cylindrical-segment-shaped cover (50) placeable on the upper edge of the membrane element (27), means for the rotatable mounting (25, 46, 47) of the lever (45), which mount the lever (45) rotatably between the first lever arm (48) and the second lever arm (49) on the housing (2), wherein in the lever's idle position (49) the first lever arm (48) is arranged laterally at a distance from the housing (2) and the second lever arm (49) is arranged with the cover (50) on the upper edge of the membrane element (27) so that the lever (45) through rotation of the first lever arm (48) towards the housing (2) is rotatable with the second lever arm (49) away from the displacement chamber (3) and thereby bulges a part of the membrane element (27) within its upper edge (31) upwards via the coupling element (36), and an insertion slot (53), which reaches from the outside up to the inside of the second lever arm (49) and extends from the free end of the second lever arm (49) up to a distance from the means for rotatable mounting (25, 46, 47), wherein the coupling rod (37) reaches through the insertion slot (53) and the spherical head (43) of the coupling element (36) above the insertion slot (53) is supported on the outside of the cover (50), wherein the insertion slot (53) extends up to the crest of the cylindrical-segment-shaped cover (50), a spherical-shell-shaped recess is formed on the outside of the cover (50), stiffening ribs (44) of the spherical head (43) engage the recess, the outer side of the cover (50) has a recess (55) concentric with respect to the spherical-shell-shaped recess (54) which accommodates the head (43) of the coupling element (36), the cover (50) has a trough (56) facing away from the insertion slot (53), which is arranged in part next to the recess (55) and in part engages in this recess (55) so that a fingertip inserted into the trough (56) can engage under the head (43) in the recess (55). |
