Negative-pressure breast pump

• Main Authors: ZHANG LILI, YU JIANMEI, GUO GUORONG
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2012
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model relates to the technical field of medical instruments, in particular to a negative-pressure breast pump, comprising a horn-shaped milk sucking cover, a milk sucking tube and a milk bottle, wherein a milk outlet end of the milk sucking tube is provided with a threaded milk bottle connecting cover, one end of the milk sucking tube is fixedly communicated with a small caliber of the horn-shaped milk sucking cover, and the lower side of the milk sucking tube is communicated with the milk bottle through a threaded milk bottle connecting cover on a milk discharging tube. The negative-pressure breast pump is characterized in that the other end of the milk sucking tube is provided with a negative-pressure balloon, a milk outlet runner is arranged on inner wall of the milk sucking tube in the axial direction and is communicated with the milk discharging tube, and a one-way valve is arranged on the milk discharging tube to guarantee the production of sufficient negative pressure to achieve the effects