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High speed chronic total occlusion crossing devices

  • US 10,357,277 B2
  • Filed: 07/08/2015
  • Issued: 07/23/2019
  • Est. Priority Date: 07/08/2014
  • Status: Active Grant
First Claim
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1. An occlusion crossing device comprising:

  • an outer shaft;

    an inner shaft extending within the outer shaft, the inner shaft including a drill tip at a distal end thereof;

    an optical fiber extending within the inner shaft substantially along a central axis of the inner shaft, a distal tip of the optical fiber attached to the drill tip; and

    a handle attached to the inner shaft and the outer shaft and configured rotate the inner shaft and drill tip at speeds of greater than 500 rotations per minute,wherein the inner shaft is removably coupled with the outer shaft such that the inner shaft moves longitudinally with respect to the outer shaft when a force is applied to the inner shaft in a longitudinal direction to allow the outer shaft to bend with respect to the central axis while coupled to the inner shaft.

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