Patent · US Active

Milk repellent breast pump

US10039871B2 · kind B2 · utility

18Cited by

42References

20Claims

0Family size

Inventors

Ashia M. Pollen · Madison, US
Robert J. Harter · La Crosse, US

Key dates

Filing date	Apr 14, 2015
Grant date	Aug 7, 2018
Priority date	—
Expiry date	Dec 9, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M1/78
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A breast pump system includes a flexible vinyl suction tube that connects a milk collection device to a vacuum pump. If a milk droplet accidentally backflows into the suction tube, a supplementary opening injects tiny volumes of air sequentially into the vacuum pump or into the suction tube near the pump. As the vacuum pump operates in a cyclical manner, the injected air returns the droplet in sequential steps back to the milk collection device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.