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Irrigated catheter with improved fluid flow

  • US 9,962,224 B2
  • Filed: 12/23/2016
  • Issued: 05/08/2018
  • Est. Priority Date: 04/04/2007
  • Status: Active Grant
First Claim
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1. A catheter comprising:

  • a distal end;

    a proximal end;

    a longitudinal axis;

    a lumen that includes a first segment having a first inner diameter and a second segment having a second inner diameter that is different from the first inner diameter;

    an electrode coupled to the distal end and having a terminal end;

    a sidewall defining a plurality of elution openings including a first elution opening and a second elution opening longitudinally spaced apart from the first elution opening, each of the first elution opening and the second elution opening spaced from the terminal end and extending into the sidewall, wherein the plurality of elution openings are proximal of said terminal end; and

    a plurality of ducts including a first duct and a second duct, the first duct extending at a first angle with respect to the longitudinal axis and between the first segment and the first elution opening, the second duct extending at the first angle with respect to the longitudinal axis and between the second segment and the second elution opening.

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