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Embolus removal device

A developing device and network frame technology, applied in medical science, surgery, etc., can solve the problems of small binding force, thrombus falling off, vasospasm, etc., and achieve the effect of improving binding force

Pending Publication Date: 2018-05-18
赛诺神畅医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the radial support force is too large, it is easy to cause blood vessel damage, and at the same time, it is easy to cause thrombus rupture, resulting in secondary embolism at the distal end
If the radial support force is too small, the binding force of embedding thrombus and grabbing the thrombus will be small, which will easily cause the thrombus to fall off;
[0006] 2) The flexibility is poor, and it cannot fit well with the complex and curved blood vessels in the brain, which may easily cause vasospasm;

Method used

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Examples

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Embodiment Construction

[0040] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0042] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0043] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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PUM

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Abstract

The invention discloses an embolus removal device, comprising a guide-in sheath, a push guide wire and an embolus removal net rack; the distal end of the push guide wire is clamped to the proximal endof the embolus removal net rack, the clamped connection is sleeved with a circular element, the embolus removal net rack is in drum shape and has cross section that is of opened ring structure so that the diameter of the embolus removal net rack varies with variation of the inner diameter of the blood vessel; the embolus removal net rack is contracted and received in the guide-in sheath. The pushguide wire of the embolus removal device is firmly connected with the embolus removal net rack; the embolus removal net rack has adaptively adjustable outer diameter.

Description

technical field [0001] The present invention relates to the technical field of interventional therapy, and more specifically, to a thrombectomy device. Background technique [0002] The incidence of stroke in our country is very high. Stroke has the characteristics of high mortality rate, high disability rate and high recurrence rate, which seriously threatens the life and health of our people and brings heavy economic burden to families and society. Acute ischemic stroke (AIS) is the most common type of stroke. The key to the treatment of AIS is to open the blocked blood vessels as soon as possible and save the ischemic penumbra. [0003] At present, the clinical treatment of ischemic stroke mainly adopts mechanical thrombectomy. Mechanical thrombectomy is to deliver the thrombus retriever to the lesion site, use the thrombus retriever to grab the thrombus and take it out of the body. [0004] However, existing thrombus retrievers have the following disadvantages: [0...

Claims

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Application Information

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IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/00778A61B2017/00867A61B2017/22038A61B2017/22094
Inventor 徐荣张瑞岩傅堃张楚楚
Owner 赛诺神畅医疗科技有限公司
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