Thrombectomy stent and thrombus removal method

By adopting a recyclable metal mesh and push rod adjustment bolt-removing support structure, the existing bolt-removing balloons have solved the sealing and processing difficulty, and the smooth withdrawal in narrow areas is achieved, reducing the manufacturing cost and processing difficulty.

CN116035657BActive Publication Date: 2025-03-25BEIJING HAISHENG MEDICAL INSTR CO LTD
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Patent Information

Application Number
CN202211734713.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-31
Publication Date
2025-03-25
Estimated Expiration
2042-12-31

AI Technical Summary

Technical Problem

The existing plug-in balloon structure has challenges in sealing and processing difficulty, and is not easy to resize, resulting in unsuccessful withdrawal in narrow areas.

Method used

The inner tube of the bolt removal, push rod and outer tube of the bolt removal are used in sequence from the inside to the outside, combined with the recyclable metal mesh and the connecting tube, the metal mesh is released or recycled through the adjustment of the push rod and the outer tube of the bolt removal, and the shape of the metal mesh is adjusted to adapt to the vascular morphology through the axial adjustment of the push rod.

Benefits of technology

It reduces processing difficulty and manufacturing costs, improves adaptability, ensures that the thrombectomy stent can be withdrawn from the blood vessels, and ensures that the operation is smoothly carried out.

✦ Generated by Eureka AI based on patent content.
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Abstract

The present invention discloses a thrombus removal bracket, comprising a thrombus removal inner tube, a push rod and a thrombus removal outer tube which are sequentially mounted from the inside to the outside, the push rod and the thrombus removal outer tube can move relative to the thrombus removal inner tube, and also comprises one or more recyclable metal meshes, and a connecting tube, the recyclable metal mesh is mounted on the thrombus removal inner tube, a plurality of recyclable metal meshes are distributed along the axial direction, the distal end of the most distal recyclable metal mesh is fixed to the thrombus removal inner tube, two adjacent recyclable metal meshes are connected by a connecting tube, the most proximal recyclable metal mesh is connected to the push rod, the recyclable metal mesh is elastic, the thrombus removal outer tube moves relative to the thrombus removal inner tube, and can release or recycle the recyclable metal mesh, the push rod moves relative to the thrombus removal inner tube, and can compress or stretch the recyclable metal mesh. The present invention also discloses a thrombus removal method. The present invention adopts a recyclable metal mesh with elasticity to pull out the thrombus, has a simple structure, and is convenient for adjusting the shape of the recyclable metal mesh, and the thrombus removal bracket is withdrawn more smoothly, ensuring that the thrombus removal operation is carried out smoothly.
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