Support, thrombus withdrawing device and thrombus withdrawing system

Abstract

The invention provides a support, a thrombus withdrawing device and a thrombus withdrawing system. The thrombus withdrawing system comprises a conveying device and the thrombus withdrawing device, wherein the thrombus withdrawing device comprises the support, hollow connecting rods and a traction body, and the support comprises a plurality of capturing structures which are sequentially connected end to end; each capturing structure comprises a supporting frame and a capturing layer; each supporting frame comprises a proximal end part and a distal end part which are arranged from the near to the distant, and each capturing layer surrounds the corresponding supporting frame and covers the surface of the corresponding distal end part; the hollow connecting rods are used for connecting heads and tails of adjacent two capturing structures; the traction body movably penetrates through all the hollow connecting rods and is connected with a distal end of the thrombus withdrawing device; and the traction body is configured to generate an axial acting force on the thrombus withdrawing device in case of being pulled, so as to strut the supporting frames of all the capturing structures outwards. The support, the thrombus withdrawing device and the thrombus withdrawing system have the advantages that the size of the thrombus withdrawing device is reduced, the flexibility and adherence of the thrombus withdrawing device are improved, and the success rate of thrombus capturing is further increased.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a bracket, a thrombectomy device and a thrombus retrieval system. Background technique [0002] Stroke has the characteristics of high morbidity, high mortality and high recurrence rate, which seriously endanger human health and quality of life. Stroke includes ischemic stroke and hemorrhagic stroke, among which ischemic stroke accounts for 70% to 80%, and is the main cause of death and disability in middle-aged and elderly people. [0003] In patients with ischemic stroke, cerebral ischemia can easily cause brain cell death in a short period of time, resulting in disability or death of the patient. Therefore, the treatment of ischemic stroke is also a major difficulty in the field of stroke treatment. The current treatment methods for ischemic stroke can be divided into drug therapy and physical therapy. Drug therapy generally uses recombinant tissue plasmi...

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide a stent, a thrombectomy device and a thrombectomy system to solve the problem that the existing thrombectomy device cannot penetrate into thinner blood vessels due to its large volume

[0006] Another object of the present invention is to provide a bracket, a thrombectomy device and a thrombectomy system to solve the problems of poor flexibility and wall-adherence of the existing thrombectomy device after stretching

[0007] Another object of the present invention is to provide a bracket, a thrombectomy device, and a thrombus retrieval system to solve the problem that the existing thrombus retrieval device is difficult to capture escaped small thrombus

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