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Method and apparatus for detection of lead conductor anomalies using dynamic electrical parameters

  • US 9,827,416 B2
  • Filed: 08/28/2014
  • Issued: 11/28/2017
  • Est. Priority Date: 08/25/2009
  • Status: Active Grant
First Claim
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1. A method for determination of anomalies in an implanted lead within a patient, the method comprising the steps of:

  • a. delivering one or more signals at a subset of frequencies to one or more conductors in the implanted lead,b. measuring two or more parameters determined by the inductance or capacitance of the one or more conductors in response to a transmitted signal, the two or more measured parameters selected from the group consisting of;

    complex impedance including real and imaginary components, admittance, susceptance, resonance frequency, and phase angle,c. determining at least one relationship between the two or more measured parameters,d. comparing the at least one relationship to a predetermined expected range of relationships, ande. detecting an anomaly based on a change between the determined and expected relationships,wherein the anomaly can be any of a partial conductor fracture or a complete conductor fracture, or a partial insulation failure or a complete insulation failure.

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