Thrombectomy stent and thrombus catcher

A catcher and thrombus technology, which is applied in the field of medical devices, can solve the problems of deformation influence, dimensional resilience reduction, etc., and achieve the effect of uniform distribution of stress and strain, avoiding stress and strain concentration, and avoiding the effect of affecting size

Active Publication Date: 2022-03-18
SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This application provides a thrombectomy stent and a thrombus catcher to solve the technical problems of the thrombectomy stent being subjected to large stress and strain for a long time, which will cause its deformation to affect its size and decrease its resilience.

Method used

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  • Thrombectomy stent and thrombus catcher
  • Thrombectomy stent and thrombus catcher
  • Thrombectomy stent and thrombus catcher

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0028] see Figure 1 to Figure 3 , figure 1 It is a schematic diagram of the overall structure of an embodiment of the thrombectomy bracket of the present application; figure 2 It is a schematic diagram of the overall unfolded structure of an embodiment of the thrombectomy bracket of the present application; image 3 It is a schematic diagram of a partially deployed structure of an embodiment of the thrombectomy stent of the present application...

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Abstract

The present application discloses a thrombectomy bracket and a thrombus catcher, wherein the thrombectomy bracket is a self-expandable tubular grid structure, and the thrombectomy bracket includes a plurality of connected first grid units, and the first grid The unit includes a plurality of side bars, and the cross-sectional area of ​​the side bars gradually increases along the direction from the middle of the side bars to the two ends of the side bars. By setting the side bars of the first mesh unit along the direction from the middle to both ends, the cross-sectional area of ​​the side bars gradually increases, so that the stiffness of the side bars gradually increases along the direction from the middle to both ends, reducing the end of the side bars And the strain amount near the end area makes the stress and strain distribution of the thrombectomy bracket even when deformed, avoids the stress and strain concentration in the local area, and avoids the deformation of the thrombectomy bracket to affect the size, and improves the resilience of the thrombectomy bracket.

Description

technical field [0001] The application belongs to the technical field of medical devices, and in particular relates to a thrombus retrieval bracket and a thrombus catcher. Background technique [0002] Acute cerebral thrombosis, mainly caused by cerebrovascular thrombosis, is the most common fatal and disabling disease of the central nervous system. Cerebral thrombosis has the characteristics of high morbidity, disability, mortality and recurrence. According to a statistical data in Beijing, the incidence of acute cerebral hemorrhage in Beijing has shown a significant downward trend in recent years, while the incidence of acute cerebral thrombosis has increased significantly, that is, the proportion of acute cerebral hemorrhage to stroke has increased from 42 % decreased to 16%, while the proportion of acute cerebral thrombosis increased from 55.8% to 81.6%, which shows that cerebral thrombosis has become the number one brain disease. [0003] With the development of inter...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/22A61F2/90
CPCA61B17/22A61F2/90A61B2017/22038A61F2250/0098A61F2210/0061
Inventor 王禹都王大伟张一叶萍杨鹏飞
Owner SHANGHAI ACHIEVA MEDICAL SUZHOU CO LTD
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