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Guidewire for crossing occlusions or stenoses

  • US 9,113,955 B2
  • Filed: 02/26/2014
  • Issued: 08/25/2015
  • Est. Priority Date: 04/06/2000
  • Status: Expired due to Term
First Claim
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1. A device for creating or enlarging a passageway in occlusive material in a body lumen, comprising:

  • a flexible hollow guidewire having a proximal end, a distal end, and a lumen extending therethrough;

    a drive shaft extending through the lumen of the hollow guidewire, the drive shaft rotatable relative to the hollow guidewire;

    a distal tip located at a distal end of the drive shaft and rotatable with the drive shaft, the distal tip configured to remove occlusive material from the body lumen;

    a housing coupled to the proximal end of the flexible hollow guidewire;

    a motor arranged in the housing, the motor coupled to the drive shaft to provide rotational motion to the drive shaft; and

    a control system located proximal of the housing with a wire extending between a proximal end of the housing and a distal end of the control system to power the motor.

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