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Ambulatory Infusion Devices And Methods With Blockage Detection

  • US 20090221957A1
  • Filed: 02/29/2008
  • Published: 09/03/2009
  • Est. Priority Date: 02/29/2008
  • Status: Active Grant
First Claim
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1. A method of operating an infusion device including a fluid transfer device and a catheter, the method comprising the steps of:

  • transferring fluid to the catheter with the fluid transfer device a plurality of times during a measurement window;

    sensing catheter pressure a plurality of times during the measurement window; and

    determining whether an increase in sensed pressure during the measurement window corresponds to an increase in sensed pressure that would result from a catheter blockage.

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