Intravenous drug access system

A medical connector for use in transferring fluids to or from a medical fluid bag having at least one inlet port, the medical connector comprising:

• a housing having a first and second end and an internal conduit defined therein;
• a puncture member at the first end of the housing adapted to be inserted into the inlet port to permit fluid transfer between said bag and said connector;
• a female luer fitting at the second end of the housing for mating with a corresponding male luer fitting of a discrete connector or valve;
• a resilient seal within the second end of the housing, configured to expand to an open position when pushed by a male luer to thereby permit the passage of fluid therethrough, further configured to reseal upon removal of the male luer.

A method of transferring fluid to a drug access bag having an inlet port using a medical connector, the method comprising:

• a housing having a first and second end and an internal conduit defined therein;
• inserting a puncture member at the first end of the housing into the inlet port to permit fluid transfer between said bag and said connector;
• providing a protective flange surrounding at least a portion of the puncture member to minimize contamination of said puncture member due to inadvertent contact with contaminated surfaces;
• attaching the connector to an inlet port on the drug access bag with an interlocking coupling between the protective flange and the puncture member;
• mating a female luer fitting at the second end of the housing with a corresponding male luer fitting of a discrete connector valve;
• expanding a resilient seal element within the second end of the housing to an open position by pushing with a male luer to permit the passage of fluid therethrough;
• and
• removing the male luer to allow the resilient seal element to contract.