ADAPTER FOR CLINICAL, MEDICAL AND LABORATORY CONTAINERS

An adapter for clinical, medical and laboratory equipment containers comprises: (a) a cylindrical substrate wherein the substrate comprises a plurality of ribs that extend outwardly from the substrate to orient and hold the adapter in an opening of the container and (b) an elastomeric insert that is formed or inserted into an opening in the substrate wherein the elastomeric insert comprises: (i) a transfer instrument passageway that allows a tip of a transfer implement to pass through the elastomeric insert and allow a liquid contained in the container to be drawn into the transfer implement and (ii) an air passage structure to allow air to be drawn into the container when the liquid is being drawn into the transfer implement.