Hypodermic syringe having folding needle
US5197954A · kind A · utility
Inventor
Key dates
| Filing date | Oct 9, 1991 |
| Grant date | Mar 30, 1993 |
| Priority date | — |
| Expiry date | Oct 9, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/919
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hypodermic syringe having a needle which folds back into a longitudinally extending channel formed on the side of the barrel of the syringe after use. A disinfectant pad may be mounted in the channel for sterilizing the needle, and lugs are provided for retaining the needle in the channel. During use, the needle is mounted to the lower end of the syringe by a supporting boss. This boss may be provided with a relatively weaker portion so that it snaps off from the barrel of the syringe in response to lateral pressure. Alternatively, there is a releasable catch which holds the boss in abutment with the end of the barrel. After the boss is separated from the end of the barrel, a pivot hinge which is mounted to the boss permits it to be folded into the protective channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.