| 摘要 |
<p>The needle unit transfers liq. from a first vessel sealed by a stopper designed for puncturing into a second one. It comprises a hollow needle fixed in a holder, which has two coaxial sleeve portions open at the outer ends and a common transverse wall between them forming a stop for the stoppers of both vessels. The needle is fixed in the centre of the wall and protrudes to both sides. Inside one of the sleeves (14,15) the needle (11,12) has an opening (28) in the side at a distance from the wall (13) at least equal to the thickness of the stopper portion to be punctured, preferably in the form of a diametral aperture.</p> |
