Syringe and needle guard assembly
US5151090A · kind A · utility
6Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1990 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Oct 19, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/04
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle guard for an additive-type syringe includes a sidewall which extends beyond the needle point. The sidewall is joined to the syringe housing by spin welding or sonic welding an annular flange that extends axially rearward from the needle guard to contact the front wall of the housing. The needle guard also includes an intermediate circumferential flange and a centering and guiding member that frictionally slides in the needle guard.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.