Open and closed valve medication delivery system for high pressure injections
US9220851B2 · kind B2 · utility
2Cited by
32References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2009 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Mar 31, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3103
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dual-chambered drug delivery device (301) includes a first chamber (342) in which medicament is stored and a second chamber (331) in fluid communication with the first chamber (342). A medicament dose is transferred to the second chamber (331) from the first chamber (342) prior to injecting the medicament dose. A needle (363) communicates with the second chamber (331) for injecting the medicament dose into an injection site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.