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Infusion pump, treatment fluid bag therefor, and method for the use thereof

  • US 5,743,878 A
  • Filed: 12/11/1995
  • Issued: 04/28/1998
  • Est. Priority Date: 06/25/1991
  • Status: Expired due to Term
First Claim
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1. An infusion system including an infusion pump and a removable treatment fluid bag that can be positioned within a containment receptacle of the infusion pump, the infusion pump having an inflatable bladder, an electronic control circuit, and a pressure sensor, the treatment fluid bag including:

  • (1) a port for introducing fluid into the treatment fluid bag;

    (2) an extension set, attached to the treatment fluid bag, for delivering treatment fluid to a patient; and

    (3) an activator device for activating the electronic control circuit which controls the expulsion of treatment fluid from the fluid bag, wherein the electronic control circuit controls the expulsion of treatment fluid from the fluid bag by controllably inflating the inflatable bladder against the fluid bag when the bag is positioned within the containment receptacle, and wherein the electronic control circuit is in operative communication with the pressure sensor which is, in turn, in operative communication with the bladder.

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