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Thrombectomy bracket system

A stent system and grid unit technology, applied in the field of medical devices, can solve problems such as easy thrombus falling off, and achieve the effects of reducing the probability of damage to blood vessels, good flexibility, good flexibility and elasticity

Pending Publication Date: 2017-06-20
SHANGHAI HEARTCARE MEDICAL TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies of the existing technology, especially the problem that the thrombus is easy to fall off during the thrombus grasping process, the inventors researched and obtained a thrombus retrieval stent system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] figure 1 A specific embodiment of the thrombectomy bracket system involved in the present invention is shown. In this embodiment, the thrombectomy support system includes a thrombectomy support 1 , a developing ring 2 , a push rod 3 and an introduction sheath 4 . The proximal end of the thrombus removal bracket 1 is connected to the distal end of the push rod 3, and a developing ring 2 is arranged at the connection. The push rod 3 is connected with the introduction sheath 4 . The distal end of the thrombectomy support 1 is provided with a developing element 21 . Both the distal end and the proximal end of the thrombectomy support 1 are open.

[0062] figure 1 The A-A cross-section such as figure 2 As shown, it can be seen that the cross section of the thrombectomy support 1 is an open ring. combine figure 1 It can be seen that the thrombus removal bracket 1 is in the shape of a cylindrical roll. Adjusting the degree of curling of the thrombectomy support 1 can ...

Embodiment 2

[0064] In this embodiment, the cutting pattern of the thrombectomy bracket is as follows: Figure 4 shown. The thrombectomy support 1 includes a plurality of identical grid units 11 connected to each other. The grid unit 11 is elliptical.

Embodiment 3

[0066] In this embodiment, the cutting pattern of the thrombectomy bracket is as follows: Figure 5 shown. The thrombectomy support 1 includes a plurality of grid units 11 connected to each other. Grid unit 11 is a triangle.

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Abstract

The invention discloses a thrombectomy bracket system which comprises a thrombectomy bracket. The far end of the thrombectomy bracket is in an opening state. Preferably, the thrombectomy bracket is shaped like a winding drum; the cross section of the thrombectomy bracket is of an open-loop structure, so that the bracket has proper support force and very good flexibility, and the bracket can better reach an intracranial bent blood vessel. The thrombectomy bracket has the proper support force, fusion of the thrombectomy bracket and thrombus is improved, the blood vessel is not damaged, and the thrombus grasping capacity is improved. Furthermore, by means of special thrombectomy bracket cutting design, the flexibility of the thrombectomy bracket is guaranteed, and meanwhile the very good thrombus grasping capacity is achieved; effective thrombus attaching can be achieved, and the phenomenon that the thrombus gets away from the thrombectomy bracket in the thrombectomy process is avoided.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a thrombectomy bracket system. Background technique [0002] Stroke is currently one of the common diseases in the world, and its characteristics are: high incidence rate, high prevalence rate, and high disability rate. The annual incidence of cerebrovascular disease in my country's urban areas is 219 / 100,000, and that in rural areas is 185 / 100,000, and it is still increasing year by year. From 1998 to 2008, the prevalence of cerebrovascular disease increased from 5.9‰ to 9.7‰. Among the surviving patients with cerebrovascular disease, about three-quarters of them are disabled in different degrees. It is reported that 80% of stroke patients have different degrees of limb dysfunction, and 43.7% of them cannot take care of themselves. Intravenous rt-PA thrombolysis is currently the only effective treatment for acute cerebral infarction proven by evidence-based medicine. However, t...

Claims

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Application Information

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IPC IPC(8): A61B17/22A61B17/221
CPCA61B17/22A61B17/221A61B2017/00778A61B2017/22067A61B2017/22072A61B2017/2212
Inventor 王国辉吴建平王震周尔辰薛宗玉
Owner SHANGHAI HEARTCARE MEDICAL TECH CORP LTD
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