CONTAINER FOR MEDICAL LIQUID WITH SEPARABLE OUTER AND INNER CLOSURES AND METHOD OF OPENING SAME

摘要

A thermoplastic bottle for sterile medical liquids with a dispensing outlet closed off by an inner closure. An outer closure in the form of a thermoplastic cap overlies the inner closure. During steam sterilization at 240 DEG to 260 DEG F (116 DEG to 127 DEG C) the outer cap deflects inwardly against the inner cap to force the inner cap into a tighter seal against the bottle. This outer cap includes external left-handed threads and has a lateral frangible brim fused to the thermoplastic bottle. A threaded jacking ring is screwed onto the outer cap and with a counterclockwise motion acts to (1) fracture the cap's external brim and (2) separate the outer cap from the sealed inner cap.