NEEDLELESS VIAL ACCESS DEVICE

摘要

A cannula assembly adapted to pierce a solid or unslit closure is disclosed and includes a blunt cannula (50) and a piercing member (12) held in cooperation with or contained within the flow channel (62) of the cannula. Generally, the piercing member includes a tip (14) capable of piercing an unslit stopper or closure and a means (36) to temporarily retain the piercing member from the cannula and prevent inadvertent disengagement of the piercing member from the blunt cannula.