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Blood vessel occlusion

  • US 9,107,669 B2
  • Filed: 05/19/2014
  • Issued: 08/18/2015
  • Est. Priority Date: 02/05/2013
  • Status: Active Grant
First Claim
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1. An occlusion device delivery system, comprising:

  • a catheter having a central axis and a lumen extending along the central axis between distal and proximal sections, the distal section having proximal and distal apertures extending through a wall of the catheter;

    a helical implant carried on the catheter and comprising proximal and distal segments configured to extend within the respective proximal and distal apertures, the proximal segment having a first end whereat the implant changes in curvature and a second end whereat the implant terminates, the distal segment having a first end whereat the implant changes in curvature and a second end whereat the implant terminates;

    an elongate member extending through the lumen, wherein when engaged with the proximal segment, the elongate member extends across the proximal aperture between the catheter wall and the proximal segment to radially restrain the proximal segment within the proximal aperture while the proximal segment second end is positioned outside of the proximal aperture, and wherein when engaged with the distal segment, the elongate member extends across the distal aperture between the catheter wall and the distal segment to radially restrain the distal segment within the distal aperture while the distal segment second end is positioned outside of the distal aperture;

    a handle coupled to the proximal section; and

    a slider member coupled to the handle and to the elongate member, the slider member being movable to cause disengagement of the elongate member from the proximal and distal segments to permit expansion of the implant from an engaged configuration.

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