Breast pump
US5415632A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Jan 10, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/073
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ergonomically effective breast pump includes a pump body including a breast engaging portion, a breast milk receiving container on the pump body, a one-way valve between the pump body and the container and a piston and cylinder assembly for applying vacuum to the interior of the pump body. The breast engaging portion is receivable in engagement with a breast of a user, and the piston and cylinder assembly includes a piston which is moveable in a cylinder in a direction outwardly and away from the user for applying vacuum to the breast of the user through the pump body. The breast pump further includes a thumb receiving element for moving the piston in the cylinder in a direction outwardly and away from the user with a thumb on a hand of the user, a handle element receivable in the same hand for assisting the user to draw the piston in an outward direction in the cylinder and a spring element for returning the piston in a direction toward the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.