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Fault detection apparatus and method for parenteral infusion system

  • US 4,534,756 A
  • Filed: 04/11/1983
  • Issued: 08/13/1985
  • Est. Priority Date: 04/11/1983
  • Status: Expired due to Term
First Claim
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1. Fault detection apparatus for use with a parenteral administration system having an infusion device for infusing parenteral fluid through a fluid tube to the vascular system of a patient, comprising:

  • pressure transducer means for monitoring the pressure of the fluid in the fluid tube and producing a corresponding pressure signal;

    fault detection means for evaluating the pressure signal over a period of time to detect characteristic patterns in the waveform of the pressure signal evaluated which are indicative of improper fluid communication between the fluid tube and the vascular system of the patient; and

    means for producing a corresponding alarm signal whenever the fault detection means detects such a characteristic pattern.

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