US 11,937,837 B2
Fibrin rich / soft clot mechanical thrombectomy device
Declan Lee, Galway (IE)
Assigned to NEURAVI LIMITED, Galway (IE)
Filed by Neuravi Limited, Galway (IE)
Filed on Dec. 29, 2020, as Appl. No. 17/136,346.
Prior Publication US 2022/0202428 A1, Jun. 30, 2022
Int. Cl. A61B 17/221 (2006.01); A61M 25/00 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/221 (2013.01) [A61B 2017/00526 (2013.01); A61B 2017/2212 (2013.01); A61M 2025/0079 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A device for removing a clot from a blood vessel, comprising:
a proximal tubular shaft comprising a lumen extending therethrough;
a framework of struts having a constrained delivery configuration, an expanded clot engaging deployed configuration, and an at least partially constrained clot pinching configuration, the framework of struts comprising:
an elongate inner body comprising a distal end, a longitudinal axis, and one or more clot pinching cells configured to pinch the clot on movement from the deployed configuration to the clot pinching configuration; and
an outer cage connected to the distal end of the elongate inner body and expandable to a radial extent greater than the elongate inner body; and
one or more pull wires extending through the lumen of the proximal tubular shaft and fixedly connected to the outer cage, the one or more pull wires configured to move the outer cage from the expanded deployed configuration to an inverted clot housing configuration,
wherein each of the one or more clot pinching cells are arranged in an axial series and are hingedly joined to each of their respective adjacent clot pinching cells of the one or more clot pinching cells by a flexible connector strut, the flexible connector strut being the only point of contact between the respective adjacent clot pinching cells of the one or more clot pinching cells.