SAFETY NEEDLE ASSEMBLY AND METHOD FOR MAKING THE SAME

摘要

A safety needle assembly has a collar (6) rotatably mounted to a needle hub (4), which may be connected to a syringe (16). The collar of the needle assembly may be rotated by turning the needle sheath (12). In some of the embodiments, by rotating the needle sheath, the needle hub is likewise rotat ed for connection to a syringe. When an exposed needle (22) is to be covered, a housing (8) connected to the collar is pivotally moved to cover the needle. Mechanisms are provided at both the collar and the housing so that once the contaminated needle is covered, the needle assembly may be removed from the syringe by rotating the needle housing (8). In all of the embodiments disclosed, the needle sheath does not come into contact with the needle hub and the collar is rotatable about the needle hub.