Breast shield
US11559614B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2016 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Dec 2, 2038 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for operating a breastpump unit for expression of human breastmilk and various breast shields for use in this method allow a maximum pumping performance and a minimum pumping duration per pumping session. The breast shield has an inner chamber for receiving a nipple of the breast and also at least one outer chamber which at least partially surrounds the nipple. The inner chamber is subjected to a constant pressure and the at least one outer chamber is subjected to a pulsating pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.