Bottle for packaging liquid that is to be dispensed drop by drop, with antibacterial protection
US8894622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2009 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Mar 12, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a bottle for packaging a liquid to be distributed drop by drop comprising a reservoir the walls of which can be reversibly elastically deformed by letting air into the container, surmounted by a liquid dispensing head comprising a dropper nozzle protruding from the bottle and an anti-bacterial filter membrane, that is partially hydrophilic and partially hydrophobic, interposed across the path of the liquid and the air, at the base of the said nozzle. In the dispensing head, the proposal is to create the nozzle by itself out of a material containing a bactericidal agent that has the effect of preventing any bacterial growth on the surface of the said nozzle on the outside of the antibacterial membrane. A porous core is advantageously positioned inside the duct through which liquid is expelled and air is admitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.