Breast pump
US11413381B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2021 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Sep 13, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3344
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A breast pump device and associated methods for extracting breast milk ate disclosed. A pump head comprises an external shell with an elastic membrane disposed and bonded therein to define at least one hermetically sealed chamber. Manipulation of the elastic membrane, for example, by adjusting suction or pressure in the sealed chamber or within an interior volume defined by the elastic membrane permits radial mechanical compression (positive pressure) to be applied to a nipple positioned in the pump head to simulate compression of the nipple by the infant's tongue and simultaneously permits axial hydraulic or pneumatic suction (negative pressure) to be applied to the nipple to simulate the infant's minimum intra-oral vacuum. The breast pump device of the present invention can generate these simultaneous compressions and suctions with a single vacuum source, which may be an electric pump or a hand-operated mechanical pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.