| 摘要 |
A syringe for injecting a medical fluid into a site or withdrawing a medical fluid from a site, having a syringe barrel and an elastomeric plunger. The syringe barrel is of polymeric material having an inner surface defining a tapered cylindrical chamber extending from the proximal end to the distal end of the syringe. The distal end terminates in a tip, having a bore therethrough, to which an injection needle or a connector is attached. The proximal end receives the slidably insertable elastomeric plunger for reciprocating movement in the tapered cylindrical chamber. The elastomeric plunger is tapered from its proximal end to its distal end. The angle of taper in both the cylindrical chamber and in the elastomeric plunger is at least ⅛°.
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