Abstract: A closure assembly for a medical dispenser including a cover and a tip cap removably disposed therein. A flexible retaining member including a plurality of flexible fingers is/are angularly positioned within the cover in both a retaining relation and a blocking position, which respectively restrict removal of the tip cap from the cover and a reinsertion of the tip cap, back into the cover, subsequent to its removal. Structurally distinguishable but similarly operable embodiments include the plurality of flexible fingers connected to and extending angularly outward from an interior of the cover or connected to an exterior of the tip cap.

Abstract: A closure for a medical container including a base structured to be supported in an operative, upright orientation on a horizontal surface and having an exposed face and a connector disposed thereon and extending outwardly therefrom. A protective cage includes one or more cage members each configured in the form of a helix fixedly connected to the base and extending longitudinally and laterally outward from the connector in at least partially surrounding relation thereto. The base may include self-righting structural features, including an outer surface having a curved, substantially bulbous configuration and a center of gravity disposed between a tipping point of said base and a terminal end thereof.