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Catheter apparatuses, systems, and methods for renal neuromodulation

  • US 10,342,612 B2
  • Filed: 11/14/2017
  • Issued: 07/09/2019
  • Est. Priority Date: 10/21/2010
  • Status: Active Grant
First Claim
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1. A method of treating a human patient diagnosed with hypertension, the method comprising:

  • intravascularly positioning a catheter within a renal artery of the patient and adjacent to target neural fibers innervating a kidney of the patient, the catheter comprising a distal region including a first flexure zone and a second flexure zone extending distally from the first flexure zone, wherein the second flexure zone includes a plurality of electrodes, and wherein the second flexure zone is configured for spiral deflection;

    delivering a thermal fluid infusate through one or more of the individual electrodes and into the renal artery; and

    at least partially ablating the target neural fibers via radio frequency (RF) energy delivered via the electrodes.

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