US 12,402,902 B2
Devices and methods for removal of acute blockages from blood vessels
David Vale, Barna (IE); Eamon Brady, Loughrea (IE); Michael Gilvarry, Headford (IE); David Hardiman, Dublin (IE); and Brendan Casey, Barna (IE)
Assigned to Neuravi Limited, Galway (IE)
Filed by Neuravi Limited, Galway (IE)
Filed on Aug. 23, 2021, as Appl. No. 17/409,424.
Application 17/409,424 is a division of application No. 16/248,539, filed on Jan. 15, 2019, granted, now 11,103,264.
Application 16/248,539 is a continuation of application No. 14/207,069, filed on Mar. 12, 2014, granted, now 10,201,360, issued on Feb. 12, 2019.
Claims priority of provisional application 61/784,940, filed on Mar. 14, 2013.
Prior Publication US 2021/0378695 A1, Dec. 9, 2021
Int. Cl. A61B 17/221 (2006.01); A61L 31/02 (2006.01); B05D 1/32 (2006.01); B05D 3/12 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/221 (2013.01) [A61L 31/022 (2013.01); B05D 1/322 (2013.01); B05D 3/12 (2013.01); A61B 2017/00526 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/00942 (2013.01); A61B 2017/00951 (2013.01); A61B 2017/22034 (2013.01); A61B 2017/2212 (2013.01); A61B 2017/2217 (2013.01); A61B 2090/3966 (2016.02)] 13 Claims
OG exemplary drawing
 
1. A method of manufacturing an expandable body of a clot retrieval device, the expandable body comprising:
a framework of interconnected strut elements distal of an elongate shaft, the strut elements forming an outer expandable body and an inner expandable body, at least a portion of the strut elements comprising:
a first coating of radiopaque material defining a plurality of micro-columns, wherein each micro-column includes a length extending between a first end coupled to at least one of the strut elements and a second free end opposite the first end, the length of each micro-column is longer than a width of each micro-column;
wherein the second free ends of the micro-columns are capable of moving further apart when a convex bend is applied to at least a portion of the strut elements during use; and
a second coating,
the method comprising:
applying the first coating to the strut elements,
removing at least a portion of the first coating from at least one area of the strut elements, and
cutting away regions of both the first coating and the strut elements to form an interconnected pattern of coated and uncoated regions.