Safety syringe
US5057086A · kind A · utility
42Cited by
4References
12Claims
0Family size
Inventors
Key dates
| Filing date | Jul 30, 1990 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Jul 30, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/326
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tubular hypodermic needle syringe has a tubular sheath that slides over the exterior of the syringe to cover the needle. The sheath is locked over the needle by a latch that engages the syringe and the sheath. The latch is held in its locking engagement by a sliding collar that normally engages the latch to lock the latch but which is manually slidable to disengage the latch so that the sheath can be manually moved to expose the needle. A spring urges the collar to a latch engaging position to automatically lock the sheath over the needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.