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Intravenous administration system

  • US 3,982,534 A
  • Filed: 01/10/1975
  • Issued: 09/28/1976
  • Est. Priority Date: 01/10/1975
  • Status: Expired due to Term
First Claim
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1. An intravenous administration system having a plurality of connected intravenous units operating in a cooperative and inter-related manner to provide controlled administration of several parenteral fluids through a single cannula said system comprising:

  • 1. a primary intravenous set includinga. spike means adapted to connect the set to a container of intravenous fluid, conduit means connected to said spike means for conducting fluid from the intravenous fluid container,b. vent means in communication with the conduit means,c. a flowmeter connected to the aforesaid conduit means,d. anti-air lock and anti-air embolism means connected to the outlet end of the flowmeter,e. a flow control assembly connected to the aforesaid anti-air lock and anti-air embolism means, and adaptive means positioned ahead of the flowmeter for receiving the fluid connector of a secondary IV, said means incorporating a check valve for prevention of fluid flow from a primary IV container to a secondary, and a second check valve for prevention of fluid flow from a secondary to the primary,f. a fluid reservoir and administration assembly in communication with the flow control assembly for administering the intravenous fluid to the patient,2.

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