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Device and method of ablative cutting with helical tip

  • US 9,283,040 B2
  • Filed: 03/13/2013
  • Issued: 03/15/2016
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. A catheter assembly comprising:

  • a catheter defining an inner lumen therein;

    a plurality of optical fibers provided in a helical arrangement concentric with the inner lumen;

    a mechanical cutting feature including a portion proximate the plurality of optical fibers;

    the plurality of optical fibers having a distal fiber and a proximal fiber, wherein the distal fiber is axially offset from the proximal fiber by a predetermined distance and wherein the mechanical cutting feature extends along the predetermined distance;

    the plurality of optical fibers provided external to the inner lumen, the inner lumen providing a pathway for travel of material ablated by the optical fibers; and

    wherein the helical arrangement extends 360 degrees about a longitudinal axis of the catheter.

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