Single-handed breast pump
US4813932A · kind A · utility
64Cited by
8References
16Claims
0Family size
Inventor
Key dates
| Filing date | Sep 11, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Sep 11, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A single handed breast pump comprises a pump body (1) housing a piston (7) releasably connected to a hand lever (9) itself releasably pivoted to the pump body, the latter including a funnel (2) to be laid against the nipple and an outlet (4) at which a container may be connected. The funnel connects with a variable volume chamber in the pump body, said chamber having valves (11, 24) respectively for venting and for opening communication with the container outlet, whereby on operation of the hand lever an alternating pressure can be built up and relieved at the funnel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.