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System and method for mixing and delivering intravenous drugs

  • US 6,234,997 B1
  • Filed: 07/22/1999
  • Issued: 05/22/2001
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Term
First Claim
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1. A method for mixing a drug provided in a vial, the method comprising:

  • providing a fluid passageway in fluid communication with a vial receptacle and with a top and a bottom of a variable-volume chamber;

    providing an air vent in fluid communication with the fluid passageway;

    moving liquid from the bottom of the chamber, through the fluid passageway and the vial receptacle, to the vial;

    moving air from the top of the chamber, through the fluid passageway and the vial receptacle, to the vial; and

    moving liquid from the vial, through the vial receptacle and the fluid passageway, to the chamber.

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