| 摘要 |
The syringe for sampling and discharging a liquid, comprises a cylindrical body (1') and a plunger actuated by a plunger rod (8'), which can move coaxially in the body, in order to suck in or eject a liquid through a needle-holder tip. This body is provided with a first bearing surface (5'). The plunger is integral, by means of its rod, with a second bearing surface (11', 12'). By bringing the second bearing surface towards the first, the volume of the internal chamber of the cylindrical body increases, whereas by separating the second bearing surface from the first, the volume of the said chamber decreases. <IMAGE> |
