Breast pump
US8545438B2 · kind B2 · utility
8Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2010 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Oct 20, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/82
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electronically controlled breast pump for generating cyclical suction includes a cumulative vacuum pump and a plurality of switches including at least an expression mode cycle time selection switch, a peak vacuum level selection switch, and a stimulation mode switch. A controller coupled to the cumulative vacuum pump controls the apparatus which optionally further includes a four-layer assembly of the various features, an adjustable safety valve, and/or a pump head with a groove traversing top dead center of the pump head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.