Safety vacuum syringe for blood sampling
US5776076A · kind A · utility
Inventor
Key dates
| Filing date | Mar 11, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Mar 11, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3106
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A safety vacuum syringe for blood sampling, which includes a barrel, a cylindrical vacuum container mounted inside the barrel, a reduced tubular lining cap mounted in the barrel at the front end, a hollow cylindrical connecting member fixedly secured to the front end of the cylindrical vacuum container, a needle holder having an outer needle cannula and an inner needle cannula at two opposite ends, an outer needle cap covered on the outer needle cannula, and an outer bottom cap fastened to the barrel to hold the vacuum container on the inside, wherein when the vacuum container is pulled out and detached from the barrel, the connecting member and the needle holder are pulled to the inside of the barrel, the outer needle cap and the outer bottom cap are respectively and invertedly inserted into the two opposite ends of the barrel to deform the needle cannulas in the barrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.