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Determining catheter status

  • US 10,357,620 B2
  • Filed: 09/21/2015
  • Issued: 07/23/2019
  • Est. Priority Date: 10/02/2003
  • Status: Active Grant
First Claim
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1. A system for determining whether an implanted infusion system has catheter complications, the implantable infusion system comprising a catheter access port in communication with a lumen of a catheter, the lumen of the catheter having an inner diameter defined by the lumen, the system comprising:

  • a probe having a lumen defining an inner diameter, wherein the inner diameter of the probe is less than or equal to 60% of the inner diameter of the catheter, wherein the probe is configured to be percutaneously inserted into the catheter access port;

    a pressure sensor operably coupled to the probe and configured to measure pressure in the lumen of the probe; and

    a processor configured to identify pressure changes associated with a physiological event by comparing pressure measured via the pressure sensor to a pressure profile associated with the physiological event.

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