Medication container stopper which can be punctured by nozzle of a hypodermic syringe
US5060812A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Sep 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S215/03
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A medication container stopper includes an elastomeric plug which makes a friction fit in an opening of the container. A first cavity in an exterior surface of the plug opens and diverges away from an interior surface of the plug. A second cavity opens qnd diverges away from the exterior surface of the plug. The bottoms of the cavities are spaced apart to define opposite faces of a thin diaphragm formed integrally with the plug. One of the cavities has an elongated groove with a bottom which defines one face of the diaphragm, which is of a thickness that permits the diaphragm to be ruptured by inserting a conventional hypodermic syringe nozzle into the cavity in the exterior surface of the plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.