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Automatic infiltration detection system and method

  • US 4,648,869 A
  • Filed: 12/04/1985
  • Issued: 03/10/1987
  • Est. Priority Date: 12/04/1985
  • Status: Expired due to Term
First Claim
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1. An infusion system for infusing a flowable material into a patient comprising:

  • an infusion device for delivering the flowable material, said infusion device including means for delivering the flowable material in a normal delivery pattern and for delivering a test pulse of the flowable material with the test pulse being different from the normal delivery pattern and with the test pulse providing an increased flow rate of flowable material;

    conduit means for conducting the flowable material from the infusion device to the patient, said test pulse creating a pressure wave response in the conduit means; and

    means responsive to the pressure wave response in the conduit means for detecting if the flowable material is being improperly supplied by the conduit means to the patient.

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