Regulating device for a breast pump
US6290671A · kind A · utility
22Cited by
19References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M1/743
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The partial vacuum generated in a vacuum chamber by a suction pump via an air aspirating line and a hose can be changed by admitting leakage air through an air supply line. The supplied amount of leakage air is determined by a relative movement of a regulating groove and a leakage groove in respect to each other, and the partial vacuum in the vacuum chamber is regulated in this way. Since in a breast pump the partial vacuum generated in the vacuum chamber is transmitted to the funnel-shaped breast body, it is possible in this way to also regulate the partial aspiration vacuum over the breast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.