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Multi-liquid medicament delivery system with reflex valves

  • US 5,298,024 A
  • Filed: 12/28/1992
  • Issued: 03/29/1994
  • Est. Priority Date: 12/28/1992
  • Status: Expired due to Term
First Claim
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1. A multi-liquid medicament delivery system, comprising:

  • a syringe vessel having a wall and an injection port formed through the wall, the injection port being configured for engaging a needleless IV fitting;

    a syringe plunger slidably disposed in the syringe vessel;

    a barrier plunger slidably disposed in the syringe vessel between the syringe plunger and the injection port, the barrier plunger including a channel; and

    valve means for blocking the channel of the barrier plunger, the valve means having an open configuration, wherein fluid communication through the channel is permitted, and a closed configuration, wherein no fluid communication through the channel is permitted.

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