Positive displacement stopper for a pre-filled syringe
US9649444B2 · kind B2 · utility
7Cited by
47References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Feb 17, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/31523
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stopper adapted for attachment with a plunger rod for use within a syringe barrel is disclosed. The stopper includes a main body defining an open rearward end and a closed front end. The open rearward end is adapted to receive a front forward end attachment portion of the plunger rod. The stopper also includes a core member integrally formed with said main body adjacent the closed front end. The core member includes a nose portion having a profile adapted to create a positive seal with an outlet opening of such syringe barrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.