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Energy delivery devices and methods

  • US 10,398,502 B2
  • Filed: 09/22/2015
  • Issued: 09/03/2019
  • Est. Priority Date: 11/05/2004
  • Status: Active Grant
First Claim
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1. A medical device, comprising:

  • a catheter extending from a proximal end toward a distal end, the catheter including an inflow lumen and an outflow lumen separate from the inflow lumen;

    a balloon at the distal end of the catheter, the balloon being movable between a collapsed configuration and an expanded configuration; and

    one or more electrodes disposed on an outer surface of the balloon, the one or more electrodes being configured to contact tissues defining a body lumen when the balloon is in the expanded configuration, the one or more electrodes being configured to deliver radiofrequency energy to the tissues defining the body lumen, wherein the inflow lumen is configured to deliver a fluid to the balloon, and the outflow lumen is configured to simultaneously convey the fluid from the balloon, wherein;

    along a given circumferential path that extends around an entirety of the balloon, each of the one or more electrodes has a circumferential length extending circumferentially along the circumferential path; and

    the sum of all of the circumferential lengths of the one or more electrodes covers only a minority of the circumference of the balloon when the balloon is in a maximally-expanded configuration.

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