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Device and method for the detection of an occlusion

  • US 7,881,883 B2
  • Filed: 10/13/2006
  • Issued: 02/01/2011
  • Est. Priority Date: 04/20/2004
  • Status: Active Grant
First Claim
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1. A method for detecting an occlusion, said method comprising the steps of:

  • providing a signal that corresponds to a fluid pressure in at least one of an ampoule, a catheter, and a cannula of a fluid that is being at least one of infused, administered, and injected;

    filtering the signal, wherein filtering comprises modifying the signal by applying a transfer function to the signal such that a pressure rise between chronologically successive readings of the signal is limited; and

    comparing the filtered signal and a reference signal,determining whether an occlusion in a flow path of the fluid has occurred based on a difference between the filtered signal and the reference signal.

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