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Axial lengthening thrombus capture system

  • US 10,143,482 B2
  • Filed: 12/18/2017
  • Issued: 12/04/2018
  • Est. Priority Date: 08/06/2015
  • Status: Active Grant
First Claim
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1. A method of retrieving a thrombus, comprising:

  • accessing an interior of a blood vessel;

    advancing an expanding guiding catheter and a shape memory body through the blood vessel, wherein the shape memory body comprises a first end, a second end, and an axial length therebetween;

    positioning the expanding guiding catheter and the shape memory body such that the expanding guiding catheter is proximal to the thrombus and the first end of the shape memory body is distal to the thrombus;

    expanding the first end of the shape memory body distal to the thrombus while the second end and a majority of the shape memory body remains compressed, wherein the second end is positioned proximal to the first end, wherein the shape memory body comprises a first expanded axial length;

    adjusting the shape memory body wherein the shape memory body has a second expanded axial length greater than the first expanded axial length to capture the thrombus; and

    retracting the shape memory body proximally and through a funnel opening of the expanding guiding catheter.

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