THROMBECTOMY STENT, THROMBECTOMY APPARATUS, AND THROMBECTOMY SYSTEM

WIPO Patent Application WO/2023/131311

A2

Disclosed in the present invention are a thrombectomy stent, a thrombectomy apparatus, and a thrombectomy system. The thrombectomy stent comprises a first stent body and a second stent body; the second stent body is arranged at the distal end of the first stent body; the second stent body comprises a plurality of first pipe diameter segments and a plurality of transition segments; the first pipe diameter segments and the transition segments are alternately arranged in the axial direction of the thrombectomy stent, and two adjacent first pipe diameter segments are connected by means of a transition segment; when the proximal end and distal end of the thrombectomy stent are relatively far away from each other in the axial direction, at least a part of the region of each first pipe diameter segment radially shrinks, and the radial shrinkage regions of two first pipe diameter segments that are adjacent to each other in the axial direction are arranged at an angle. According to the present invention, when the thrombectomy stent captures a blood clot in a blood vessel and then is pulled, the thrombectomy stent can maintain a shape in different directions, and the whole thrombectomy stent does not obviously collapse; and the thrombectomy stent capable of maintaining the shape in different directions can increase the escape resistance of the blood clot, thereby being capable of effectively capturing the blood clots in different directions, and reducing the risk of blood clot escape.

WANG YONGSHENG (CN)
YU PENG (CN)
GUO YAPING (CN)

PCT/CN2023/071080

July 13, 2023

January 06, 2023

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HANGZHOU DINOVA NEUROSCIENCE CO LTD (CN)

A61B17/221

SHINY INTELLECTUAL PROPERTY FIRM (CN)

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