US 12,433,616 B2
Thrombus removal system
Sung Won Youn, Daegu (KR)
Assigned to DAEGU CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, Gyeongsan-si (KR)
Appl. No. 18/288,731
Filed by DAEGU CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION, Gyeongsan-si (KR)
PCT Filed Aug. 18, 2023, PCT No. PCT/KR2023/012242
§ 371(c)(1), (2) Date Oct. 27, 2023,
PCT Pub. No. WO2024/039214, PCT Pub. Date Feb. 22, 2024.
Claims priority of application No. 10-2022-0103252 (KR), filed on Aug. 18, 2022; application No. 10-2022-0114759 (KR), filed on Sep. 13, 2022; and application No. 10-2022-0145102 (KR), filed on Nov. 3, 2022.
Prior Publication US 2025/0072917 A1, Mar. 6, 2025
Int. Cl. A61B 17/22 (2006.01); A61B 17/00 (2006.01); A61B 17/12 (2006.01)
CPC A61B 17/22 (2013.01) [A61B 17/00234 (2013.01); A61B 17/1204 (2013.01); A61B 17/12136 (2013.01); A61B 2017/003 (2013.01); A61B 2017/00561 (2013.01); A61B 2017/00893 (2013.01); A61B 17/12109 (2013.01); A61B 2017/22079 (2013.01); A61B 2017/22082 (2013.01); A61B 2217/005 (2013.01); A61B 2217/007 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A system for removing a thrombus generated in a blood vessel from a patient body, comprising:
a main body part configured to:
move along the blood vessel to be positioned within the blood vessel where the thrombus has occurred,
perform a revascularization function within the blood vessel during installation in the blood vessel, and
suck and transfer the thrombus during aspiration;
a microflow circuit part which is attached to an outer surface of the main body part and configured to extend to an exterior of the patient body, create a microflow circuit which acts on the thrombus to move, deform, and fragment the thrombus; and
an aspiration part which is configured to be provided to the exterior of the patient body from an inside of the blood vessel;
wherein during aspiration, the aspiration part is configured to:
block blood flow in the blood vessel;
aspirate the thrombus which has been moved, deformed and fragmented by the microflow circuit part and transferred by the main body part; and
discharge the thrombus to an outside of the patient body,
wherein the main body part is formed in a shape of a hollow stent retriever having open ends, and has a plurality of inflow holes formed on the outer surface of the main body part to allow the thrombus fragmented, deformed, and fragmented by the microflow circuit part to be introduced, and
wherein the shape of the hollow stent retriever is formed to have varying diameters, getting narrower at the front and wider towards the rear in a movement direction.