US 12,419,657 B2
Clot retrieval device for removing clot from a blood vessel
Thomas O'Malley, Westport (IE); Aidan Duffy, Galway (IE); Declan Lee, Galway (IE); Annalisa Smullin, Galway (IE); Gillian Gunning, Galway (IE); and Diarmaid O'Keeffe, Galway (IE)
Assigned to NEURAVI LIMITED, Galway (IE)
Filed by Neuravi Limited, Galway (IE)
Filed on Aug. 10, 2022, as Appl. No. 17/884,771.
Application 17/884,771 is a continuation of application No. 16/946,467, filed on Jun. 23, 2020, granted, now 11,439,418.
Prior Publication US 2022/0378453 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/221 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/221 (2013.01) [A61B 90/39 (2016.02); A61B 2017/2215 (2013.01); A61B 2090/3966 (2016.02)] 15 Claims
OG exemplary drawing
 
1. A clot retrieval device to remove a clot from a blood vessel, the device comprising a collapsed configuration and an expanded configuration and comprising:
an inner expandable body; and
an outer expandable body comprising a framework of struts that form closed cells at least partially radially surrounding the inner expandable body, the outer expandable body comprising a distal scaffolding zone having a plurality of closed cells comprising:
a radially aligned and joined group of a first plurality of closed cells being axially aligned small diamond shaped cells formed by struts of the distal scaffolding zone;
a radially aligned and joined group of a second plurality of closed cells being larger than cells of the first plurality of closed cells and radially separated, each small diamond shaped cell being radially inward, distal, and adjacent to the second plurality of closed cells; and
a third plurality of closed cells radially separated and proximal of each of the second plurality of closed cells,
wherein each of the second plurality of closed cells share two common edges with two of the first plurality of closed cells;
wherein each of the first plurality of closed cells share common edges with two of the second plurality of closed cells,
wherein the first plurality of closed cells comprise a different shape than the second plurality of cells, and the second plurality of closed cells comprise a different shape than the third plurality of closed cells, and
wherein the distal scaffolding zone is a protective strut structure comprising at least twelve closed cells between the first, second, and third plurality of closed cells.