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Helical DeNervation Ablation Catheter Apparatus

  • US 20150126992A1
  • Filed: 11/05/2013
  • Published: 05/07/2015
  • Est. Priority Date: 11/05/2013
  • Status: Abandoned Application
First Claim
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1. Catheter apparatus for applying RF energy to the endoluminal surfaces of a patient'"'"'s arteries to ablate certain nerves contained therein, comprising:

  • a handle having a distal end and a proximal end, and having a linear actuator means associated therewith;

    a proximal shaft tube affixed to the distal end of the handle;

    a flexible tube or rod extending through the proximal shaft tube and having its proximal end coupled to the linear actuator means;

    a flexible distal shaft tube having its proximal end affixed to the distal end of the proximal shaft tube, its distal end connected to the distal end of the flexible tube or rod, and having a helically configured portion of its length helically wrapped about a distal portion of the flexible tube or rod;

    a plurality of electrodes and temperature sensors carried by and disposed at predetermined intervals along the helically configured portion of the distal shaft tube; and

    a bundle of electrical wires extending through and along at least a portion of the distal shaft tube and the proximal shaft tube, various ones of the wires having their respective distal ends connected to the electrodes or the temperature sensors, and their proximal ends coupled to electrical connector means for connection to electrical power and measurement means;

    whereby selective actuation of the linear actuator means causes extension or retraction of the flexible tube or rod which in turn causes the helical pitch and radius of the helically configured portion of the distal shaft tube to be changed to variously position said electrodes within an artery into which said catheter is extended.

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