Prefilled syringe for storing and for transfer of liquid and sterile medicinal substances
US5478324A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1994 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Oct 12, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3131
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe (10) comprising a glass container (11) having a closed bottom end and containing a liquid drug (12). The container is sealed by an axially slidable plug/plunger/valve assembly (17) provided with a slot (19) defined by two mutually engaged sealing lips and coupled to a rod (22) centered within a body (13) coupled to the container (11). The rod comprises an axial channel (23) with one end cut off along a plane perpendicular to its axis to enable a needle (15) to be operably connected to the contents (12) of the container (11) by parting the lips of the slot (19). Said rod is further provided with an assembly for coupling same to said plug (17) when the container has been driven into the body (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.