Method of opening medical liquid container with separable outer and inner closures
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 agains...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | 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. |
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