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Integrated thrombectomy stent with gradually-changed diameter

An integrated and integrated technology, applied in the field of medical devices, can solve problems such as blood vessel damage, blood vessel compression, deformation, etc., to achieve the effect of improving flexibility, reducing deformation, and improving safety

Pending Publication Date: 2022-03-18
天津市环湖医院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cylindrical stent will cause greater compression on the thinner blood vessels at the distal end, causing them to deform and cause the risk of blood vessel damage

Method used

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  • Integrated thrombectomy stent with gradually-changed diameter
  • Integrated thrombectomy stent with gradually-changed diameter
  • Integrated thrombectomy stent with gradually-changed diameter

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Embodiment Construction

[0022] In order to better understand the purpose, structure and function of the present invention, an integrated thrombectomy bracket with gradually changing diameter of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Such as Figure 1 to Figure 3 As shown, it is an integrated thrombectomy stent with gradually variable diameter of the present invention, including a connected stent 1 and a push rod 2 , the stent 1 is integrally formed, and the stent 1 is pushed by the push rod 2 to move along the microcatheter. The two ends of the bracket 1 are the distal end and the proximal end respectively, and the diameter is uniformly tapered from the proximal end to the distal end. The push rod 2 is arranged at the proximal end of the bracket 1. End marker 4. Further, at least one distal end marker 3 is provided at the distal end of the stent 1 , preferably three to five, arranged in dislocation, and connected to the...

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Abstract

The integrated thrombectomy stent comprises an integrally-formed stent body, the two ends of the stent body are the near end and the far end respectively, the diameter of the stent body is evenly and gradually reduced from the near end to the far end, and at least one far-end marker is arranged at the far end; the stent is respectively provided with a far-end part, a gradual change part and a near-end part which are connected from the far end to the near end, the diameter of the far-end part is 2-4mm, the diameter of the near-end part is 5-7mm, and the taper included angle of the gradual change part is 3-34 degrees; the pushing rod is connected with the near end of the support through the near-end marker, and the pushing rod is pushed to drive the support to move along the microcatheter. According to the thrombus extraction stent, thrombus can be rapidly extracted, the thrombus extraction stent completely conforms to an anatomy structure from the internal carotid artery to the middle cerebral artery M1 section of a Chinese person, when the thrombus extraction stent enters a target position, deformation of blood vessels is reduced, and operation safety is improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an integrated progressive diameter thrombectomy bracket. Background technique [0002] The distal stent part of the existing thrombectomy stent is generally cylindrical with uniform diameter, and its outline does not conform to the main position of emergency thrombectomy, that is, the anatomical structure of the internal carotid artery to the M1 segment of the middle cerebral artery. The structure is The proximal end is thicker and the distal end is thinner. [0003] The cylindrical stent will cause greater compression on the thinner blood vessels at the distal end, causing them to deform and cause the risk of blood vessel damage. Contents of the invention [0004] The object of the present invention is to provide an integral thrombus retrieval bracket with gradually changing diameters that can quickly remove thrombus and prevent thrombus from escaping. [0005] In order to ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/90A61F2/91A61B17/221
CPCA61F2/90A61F2/91A61B17/221A61B2017/2215
Inventor 佟小光魏铭马振健马剑翔
Owner 天津市环湖医院
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