US 12,446,891 B2
Devices for treatment of vascular defects
Todd Hewitt, Laguna Niguel, CA (US); Parker Milhous, Santa Ana, CA (US); Hung P. Tran, Midway City, CA (US); and John Vu, Santa Ana, CA (US)
Assigned to MICROVENTION, INC., Aliso Viejo, CA (US)
Filed by MICROVENTION, INC., Aliso Viejo, CA (US)
Filed on Aug. 26, 2022, as Appl. No. 17/896,620.
Claims priority of provisional application 63/239,122, filed on Aug. 31, 2021.
Claims priority of provisional application 63/238,402, filed on Aug. 30, 2021.
Claims priority of provisional application 63/238,434, filed on Aug. 30, 2021.
Prior Publication US 2023/0114169 A1, Apr. 13, 2023
Int. Cl. A61B 17/12 (2006.01)
CPC A61B 17/12172 (2013.01) [A61B 17/12113 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A device for treatment of a patient's cerebral aneurysm, comprising:
a permeable shell having a proximal end, a distal end, an outer surface, an inner surface, a radially constrained elongated state configured for delivery within a catheter lumen, an expanded state with a longitudinally shortened configuration relative to the radially constrained state, and a plurality of elongate filaments that are woven together to form a mesh, the expanded state having an exterior cavity defined by the outer surface of the permeable shell, wherein the exterior cavity comprises an opening communicating with a chamber, wherein the opening is narrower than a length of the chamber, wherein a maximum length of the opening is smaller than a maximum length of the chamber; and
an additional embolic material deployed in the chamber of the cavity, wherein the additional embolic material comprises one or more coils.