Device for storing a liquid medicinal substance and for administering eye drops
US5499751A · kind A · utility
Inventor
Key dates
| Filing date | Oct 18, 1993 |
| Grant date | Mar 19, 1996 |
| Priority date | — |
| Expiry date | Oct 18, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J1/1456
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The device represented in its storage position contains essentially a body (11) in synthetic material containing a reservoir (10) containing a medicinal substance (29). The body (11) is fitted with an applicator nozzle (15). The reservoir (10) has the shape of a cylindrical glass jacket (17) closed at one end by a movable sealing plug (18) and at the other end by a mobile piston (19). The mobile piston is linked with a plunger (16) which advantageously is a spring in a synthetic material. A flow rate controlling filter (19) is lodged in the applicator nozzle (15). This device is advantageous because the reservoir can be sterilized with its contents. The filter and the piston along with the plunger guarantee the medicinal substance remains in an aseptic state by preventing contamination via the applicator nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.