One-piece safety tube closure with film element

A container assembly, comprising:

• a collection container having a closed bottom, an open top portion, and a sidewall extending therebetween, the collection container defining an interior adapted to receive a specimen sample therein;
• and
• a closure for closing the open top portion of the collection container, comprising:
• a cap body formed from a first material, the cap body defining a cavity therethrough and including an inward rim extending into the cavity;
• a stopper formed from a second material and disposed within the cavity, at least a portion of the stopper contacting at least a portion of the inward rim, the second material being different from the first material, wherein the second material has resealing capabilities;
• and
• a barrier layer formed from a third material, the third material being different from at least the second material, wherein the barrier layer divides the stopper into a first portion and a second portion such that the barrier layer contacts and is secured to the inward rim and the stopper and wherein a portion of the barrier layer is sandwiched between at least one of the first portion and the second portion of the stopper and the inward rim of the cap body to mechanically lock the barrier layer therebetween.

A method of forming a closure for closing and sealing a container, said method comprising:

• providing a cap body formed from a first material, the cap body defining a cavity therethrough and including an inward rim extending into the cavity;
• providing a stopper formed from a second material and disposed within the cavity, at least a portion of the stopper contacting at least a portion of the inward rim, the second material being different than the first material, wherein the second material has resealing capabilities;
• providing a barrier layer formed from a third material, the third material being different from at least the second material;
• and
• assembling the cap body, the stopper, and the barrier layer together to form the closure such that the barrier layer divides the stopper into a first portion and a second portion such that the barrier layer contacts and is secured to the inward rim and the stopper and wherein a portion of the barrier layer is sandwiched between at least one of the first portion and the second portion of the stopper and the inward rim of the cap body to mechanically lock the barrier layer therebetween.