| 摘要 |
The syringe for withdrawing blood comprises a sleeve with a needle at its two ends. The sleeve comprises a bottom (110) with an outlet orifice. A guide and locking piece carrying the needle in the sleeve has two lugs each housed in a runner. The sleeve bottom has a truncated conical section the small base of which carries the needle outlet orifice. The other end of the sleeve carries two curved tongues (130,131) preventing the placing of the syringe on this end. |
