Breast pump
US6921379B2 · kind B2 · utility
10Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Dec 20, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to a breast pump, which in addition to a drive motor (7), vacuum diaphragm pump (1) and programme-controlled electronics (4), comprises a vacuum chamber (12) with a separation diaphragm (13), which is connected between a pump intake conduit (9) and an extraction hood (11). The first chamber (14) is equipped with a device (16) for the negative or positive aeration of said chamber. Said device (16) is also programme-controlled by the electronics (4) during the normal continuous operation of the pump (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.