ASSEMBLY AND METHOD TO IMPROVE VACUUM RETENTION IN EVACUATED SPECIMEN CONTAINERS

摘要

An assembly and method is provided for improved vacuum retention in evacuated biological sample collection primary containers. Such primary containers include but are not limited to blood collection tubes, evacuated blood collection tubes, centrifuge tubes, culture bottles, and syringe barrels. In one embodiment an evacuated blood collection tube is enclosed within an evacuated secondary container which is made from a gas barrier material.