Syringe
US4668223A · kind A · utility
36Cited by
4References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1986 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Feb 4, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/342
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention relates to an injection syringe having an ampoule in which a plunger and a sealing stopper are provided, and a needle holder comprising a collar to be provided on the ampoule in a sealing manner and a sleeve closed at its front end by means of a wall. The end wall has on its outside a neck for connecting an injection needle, an aperture being recessed in the front end of the sleeve. The side wall of the sleeve has at least one longitudinal duct which, over a small part of its length, is in open communication with the room bounded by the inner walls of the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.