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Ultrasound ablation catheter with cooling infusion and centering basket

  • US 9,770,606 B2
  • Filed: 10/13/2014
  • Issued: 09/26/2017
  • Est. Priority Date: 10/15/2013
  • Status: Active Grant
First Claim
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1. An intravascular nerve modulation system, comprising:

  • an elongate shaft having a proximal end, a distal end, and an infusion lumen extending therebetween;

    an ablation transducer comprising an ultrasound transducer affixed to the elongate shaft adjacent the distal end thereof;

    an expandable basket having a proximal end and a distal end, the proximal end affixed to the elongate shaft proximal of a proximal end of the ablation transducer and the distal end is affixed to the elongate shaft distal of a distal end of the ablation transducer;

    an infusion sheath secured adjacent to the distal end of the elongate shaft in fluid communication with the infusion lumen, wherein the infusion sheath extends over the ablation transducer and is located within the expandable basket;

    wherein the system is configured to transport infusion fluid through the infusion lumen and past the ablation transducer thereby providing convective cooling to the ablation transducer; and

    wherein the expandable basket is configured to actuate between a first collapsed configuration and a second expanded configuration.

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