BREAST PUMP Russian patent published in 2011 - IPC A61M1/06 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment. A breast pump comprises an engine powdered vacuum unit accommodating a vacuum generator and a switching attached thereto and specifying expression cycles. The apparatus has a rotationally actuated switching element and at least one dust head downstream connected or connectable in such a manner with a switching link and provided with an expression funnel carried on the breast and a milk container. The switching is coupled through a transmission branch for a rotary actuator with a drive actuator of the vacuum generator. The transmission branch for actuating a vacuum pump accommodates a crankshaft whereto through at least two attached self-contained intermediates, there are coupled at least two vacuum pump units which are distributed around the crankshaft through equal angular distances and opposed to each other with axial displacement.

EFFECT: ensured compact design and reliable performance.

10 cl, 8 dwg