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Expansible shearing catheters for thrombus and occlusive material removal

  • US 20030055445A1
  • Filed: 10/31/2002
  • Published: 03/20/2003
  • Est. Priority Date: 03/31/2000
  • Status: Abandoned Application
First Claim
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1. A method for removing obstructive material from a blood vessel of a patient, the method comprising:

  • introducing a distal portion of a catheter into the blood vessel;

    positioning the distal portion of the catheter adjacent the obstructive material from outside the patient by manipulating a flexible body of the catheter;

    radially expanding inner and outer shearing members of the catheter within the blood vessel; and

    rotating the inner shearing member within the outer shearing member to shear the occlusive material therebetween.

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