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Occlusive devices

  • US 10,478,194 B2
  • Filed: 09/23/2015
  • Issued: 11/19/2019
  • Est. Priority Date: 09/23/2015
  • Status: Active Grant
First Claim
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1. An implant for occluding a target area of a patient'"'"'s vasculature, comprising:

  • a frame comprising a lattice formed of a first plurality of braided filaments that define a first plurality of openings, the first openings having a pore size of from about 1 μ

    m to about 400 μ

    m, the frame comprising a distal region and a proximal region, the frame being expandable from a compressed configuration to an expanded configuration in which the frame has a generally spherical shape, and wherein the first plurality of filaments are coupled together at a hub disposed at a proximal end of the frame;

    a first mesh component coupled to the frame along at least a first portion of the proximal region, the first mesh component comprising a second plurality of braided filaments that define a second plurality of openings, the second pluralities of filaments and openings collectively defining a mesh porosity permitting blood flow therethrough, the mesh porosity being less than a porosity of the frame, such that blood flow into the implant is more restricted along the proximal region than along the distal region of the frame; and

    a second mesh component coupled to the frame along at least a second portion of the proximal region, the second portion differing from the first portion, the second mesh component comprising a third plurality of braided filaments that define a third plurality of openings,wherein a proximal end of the implant is configured to be detachably coupled to a delivery device.

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