CPC A61B 17/12113 (2013.01) [A61B 17/1214 (2013.01); A61B 17/1215 (2013.01); A61B 17/12031 (2013.01); A61B 17/12145 (2013.01); A61B 17/12172 (2013.01); A61B 17/12177 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/00893 (2013.01); A61B 2017/00898 (2013.01); A61B 2017/1205 (2013.01); A61B 2017/12068 (2013.01); A61B 2090/3966 (2016.02); A61F 2310/00149 (2013.01); A61M 2025/0042 (2013.01)] | 20 Claims |
1. A device for treatment of an aneurysm within a patient's vasculature, comprising:
a self-expanding resilient permeable shell having a proximal end, a distal end, a distal hub, and a longitudinal axis, the shell comprising a plurality of elongate resilient filaments having a braided structure, wherein the plurality of filaments are secured by the distal hub, wherein a distal region of at least some of the plurality of filaments that extend in a generally radial direction beyond the distal hub of the permeability shell is unraveled and straight and form an extension having a generally circular shape configured to atraumatically track around a diameter of the aneurysm when expanded, wherein a distal end of each of the at least some of the plurality of filaments that extend beyond the distal hub define a perimeter of the generally circular shape, and wherein, when expanded, a substantial length of a distal end region of each of the at least some of the plurality of filaments has longitudinal axis generally perpendicular to the longitudinal axis of the permeable shell;
wherein the permeable shell has a radially constrained elongated state configured for delivery within a microcatheter and has an expanded state with a globular, axially shortened configuration relative to the radially constrained state, the permeable shell having a plurality of openings formed between the braided filaments.
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