Syringe with plug type needle hub lock

摘要

A needle hub with an internal plug and an external skirt which wedgingly squeeze a tubular syringe adapter therebetween to permanently lock the needle to the adapter. The adapter is of a softer material (polypropylene) than the hub (polycarbonate) and includes longitudinal crush ribs that frictionally lock the adapter and hub together while providing a sterilizing gas vent into the adapter-hub joint.