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Filamentary devices for treatment of vascular defects

  • US 9,295,473 B2
  • Filed: 09/30/2015
  • Issued: 03/29/2016
  • Est. Priority Date: 08/16/2013
  • Status: Active Grant
First Claim
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1. A device for treatment of a patient'"'"'s cerebral aneurysm, comprising:

  • a resilient self-expanding permeable shell having a distal end and a proximal end and including a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a globular and longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments which are woven together and define a cavity of the permeable shell, the permeable shell comprising at least some composite filaments, the composite filaments comprising drawn filled tube wires comprising an external nitinol tube and a highly radiopaque material concentrically disposed within the external nitinol tube, wherein the permeable shell has at least about 40% composite filaments relative to a total number of filaments, and wherein a total number of filaments is about 70 to about 300, and wherein each of the composite filaments has a diameter selected from the group consisting of 0.00075″

    , 0.001″

    , 0.0015″

    , and 0.00125″

    .

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