Vial connector assembly for a medicament container

A connector assembly mountable to the neck of a vial, the neck provided with a rim at an open proximal end of the vial, the rim having a side portion and an underside facing away from the open proximal end of the vial, comprising:

• a collar mountable to the rim of the vial neck between a first position, wherein the collar is removably secured to the rim of the vial neck, and a second position, wherein the collar is fixedly secured to the rim of the vial neck, said collar including a proximal end, a distal end, and a sidewall therebetween, a plurality of deflectable latches provided adjacent the proximal end of the collar, each of said latches including locking means comprising a locking hook deflectable about the side portion of the rim for secured engagement with the underside of the rim when the collar is in said second position and an engagement surface disposed in functional relation with said locking hook, wherein a pair of opposed engagement surfaces defines a first diameter;
• a protective cap mountable about the sidewall portion of the collar, the protective cap having an open proximal end, a closed distal end, and a shield wall formed therebetween, a ring provided adjacent the open proximal end of the cap and connected thereto by one or more user-severable connections, said ring having an annulus section defining an interior surface with a second diameter equal to or less than the first diameter of the pair of opposed engagement surfaces, said interior surface cooperable with the locking means of the latches to secure said collar in said second position, the cap having a removable position, wherein the collar is in said first position and said cap is mountable to the collar such that the annulus section is located distally of said locking means, and an engagement position, wherein the cap is urged in a proximal direction such that the interior surface of said annulus section is positioned in cooperating relation with the engagement surface of locking means of said latches to exert a force onto the locking hooks, urging said locking hooks into secured engagement with the underside of the rim to secure the collar in said second position.