초록

An electrically-powered breastpump is disclosed that includes a suction bell, battery-operated suction unit, and a receiving container. The pump includes a rotatable valve that directs the suction of the pump in alternating fashion between the suction bell and the receiving container.

대표청구항 ▼

A pump comprising: (a) a suction bell; (b) container means in fluid communication with said suction bell for receiving fluid from said suction bell; (c) suction pump means in fluid communication with said suction bell and said container means for creating reduced pressures in said suction bell and s

A pump comprising: (a) a suction bell; (b) container means in fluid communication with said suction bell for receiving fluid from said suction bell; (c) suction pump means in fluid communication with said suction bell and said container means for creating reduced pressures in said suction bell and said container means; (d) rotatable valve means for interrupting said fluid communication of said suction pump means with said suction bell and said container means and for exposing said suction bell and said container in alternating fashion to said reduced pressures, and for exposing said suction bell to reduced pressure during the time when said container is atmospheric pressure, and for exposing said container to reduced pressure during the time said bell is at atmospheric pressure; and (e) pressure-responsive valve means between said bell and said container that opens when said container pressure is lower than the pressure in said bell.