Retractable injection needle assembly
US5279583A · kind A · utility
102Cited by
3References
9Claims
0Family size
Inventors
Key dates
| Filing date | Aug 28, 1992 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Aug 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/905
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle shielding and use-facilitating apparatus has a first sleeve with a coupling at one end for attachment to a syringe and a hypodermic needle carried by the first sleeve. The needle extending beyond the opposite end of the first sleeve. A second sleeve is slidably received in the first sleeve and surrounds part of the needle which extends beyond the first sleeve. A spring in the first sleeve urges the second sleeve out of the first sleeve. An end coupling is attached to the second sleeve and is selectively attachable to any of a plurality of articles puncturable with the needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.