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Methods and devices for crossing chronic total occlusions

  • US 10,448,940 B2
  • Filed: 01/16/2014
  • Issued: 10/22/2019
  • Est. Priority Date: 10/22/2007
  • Status: Active Grant
First Claim
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1. A device for facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the device comprising:

  • a handle assembly;

    an intravascular device coupled to the handle assembly such that the handle assembly exerts rotational motion to the intravascular device, the intravascular device including a shaft extending distally from the handle assembly, the shaft of the intravascular device including;

    a coil wound in a helical shape, the coil extending from a distal end of the shaft to a proximal end of the shaft;

    a sleeve having a proximal end and a distal end, the sleeve extending from the distal end of the shaft and covering a portion of the coil;

    a tubular body comprising hypodermic tubing, wherein the sleeve and the coil both extend into a lumen defined by the tubular body, wherein a distal portion of the tubular body includes a cut formed therein to provide a transition in lateral stiffness proximate a distal end of the tubular body;

    a tip fixed to the distal end of the shaft; and

    a hub fixed to the proximal end of the shaft;

    wherein a guidewire lumen extends from the hub through the shaft to an opening in the tip;

    wherein the opening opens to an exterior of the shaft.

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