Syringe stopper
US8722178B2 · kind B2 · utility
57Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2010 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | May 29, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A syringe stopper that is suitable for use in syringes without silicone oil or other liquid lubricants. The invention provides a low friction barrier between an elastomeric stopper material and a therapeutic in the syringe. The barrier may inhibit materials from leaching from the elastomer material or from extraction of compounds from medicants by the elastomer. A process is also described that allows for molding thin barrier layers while allowing adequate bonding with the elastomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.