Prefilled syringe
US4772271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Apr 7, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2462
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to a prefilled syringe comprising a reservoir containing a single dose of medicine to be injected. The principle elements of this syringe are the reservoir (10), a blocking element (12), a capsule (13) integral with this element, a needle (14), a needle-protector (15) and a cap (16). The cap (16), in place on the reservoir, makes it possible for the operator, by pressing on this cap to make the blocking element penetrate towards the interior of the reservoir a sufficient distance to cause the precise bubble removal of the syringe. To this end, the cap is connected to the capsule (13) by a base (36) comprising a zone of reduced resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.