Abstract: The present invention is a shield that protects the needle of a syringe and maintains it in a sterile condition until use. The shield is able to become open at both ends. A paper or thermoplastic barrier maintains sterility and keeps the distal end of the shield closed prior to use. During usage of the present invention, the distal end of the shield also serves as a guide over the neck of a vial. The present invention is a shield for a syringe having a shield, which has two sterility barriers, where one of the sterility barriers is removable from the shield, and the other is formed at an interface between a syringe and the shield. In addition, the shield also has a guidance section that is adapted to guide a vial crimp into the shield for interface to a needle.

Abstract: A clamshell type container formed of a unitary blank of paperboard. The rear wall of the container includes a hinge line to permit opening and closing of the top cover. Buckling sometimes occurs at this hinge line upon cover opening. According to this invention four curved cut lines are provided in the common rear wall having the hinge line. The ends of these cut lines are pairwise contiguous and are spaced only slightly apart. The four pairs of contiguous cut line ends form the corners of an imaginary rectangle. Two opposite corners of the rectangle lie on the hinge line, while the remaining two opposite corners lie laterally of the hinge line on respective opposite sides thereof.