US 12,070,220 B2
Devices having multiple permeable shells for treatment of vascular defects
Ronak Dholakia, Los Angeles, CA (US); Hussain S. Rangwala, Villa Park, CA (US); and William R. Patterson, Huntington Beach, CA (US)
Assigned to MICROVENTION, INC., Aliso Viejo, CA (US)
Filed by MICROVENTION, INC., Aliso Viejo, CA (US)
Filed on Mar. 10, 2021, as Appl. No. 17/197,975.
Claims priority of provisional application 62/988,076, filed on Mar. 11, 2020.
Prior Publication US 2021/0282785 A1, Sep. 16, 2021
Int. Cl. A61B 17/12 (2006.01)
CPC A61B 17/12113 (2013.01) [A61B 17/12145 (2013.01); A61B 17/12172 (2013.01); A61B 2017/1205 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A device for treatment of a patient's cerebral aneurysm, comprising:
a plurality of permeable shells comprising at least a first permeable shell and a second permeable shell, each permeable shell of the plurality of permeable shells having a proximal end, a distal end, a plurality of elongate filaments that are woven together to form a mesh, a radially constrained elongated state configured for delivery within a catheter lumen, and an expanded state with a longitudinally shortened configuration relative to the radially constrained state, the expanded state comprising a hollow inner cavity, wherein each of the plurality of elongate filaments has a proximal end and a distal end, wherein the proximal ends of each of the plurality of elongate filaments are gathered in a proximal hub and the distal ends of each of the plurality of elongate filaments are gathered in a distal hub; and
a plurality of coils, wherein each coil of the plurality of coils comprises an inert hydrogel core that absorbs water, and wherein a first coil of the plurality of coils connects a proximal hub of the first permeable shell and a distal hub of the second permeable shell.