Intracranial Thrombectomy Device

A technology of intracranial blood vessels and blood vessels, which is applied in the field of intracranial blood vessel thrombectomy devices, can solve the problems of easy falling off, unstable thrombus fixation, complex structure, etc., achieve good blood vessel adhesion, convenient and easy thrombus removal process, and simple structure Effect

Active Publication Date: 2016-03-30
MICROPORT NEUROTECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these thrombus retrieval devices are retrieved after capturing the thrombus, the thrombus is not firmly fixed, easy to fall off, and has a complicated structure

Method used

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  • Intracranial Thrombectomy Device
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  • Intracranial Thrombectomy Device

Examples

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Embodiment Construction

[0020] Refer below Figure 1-8 The embodiments of the present invention are described in detail.

[0021] For ease of description, the following description uses the terms "proximal" and "distal", where "proximal" refers to the end closer to the operating end, and "distal" refers to the end away from the operating end.

[0022] figure 1 The overall schematic diagram of the thrombus removal device 1 is shown, which includes a guide wire 2, a push-pull guide wire 3, an outer sheath 4 and a thrombus removal device 5. The embolization device 5 is connected to the push-pull guide wire 3, and the installed push-pull guide wire 3 and the embolization device 5 are pressed into the outer sheath 4. The embolization device 5 also forms a lumen 6 and can be switched between the retracted position and the deployed position by pushing and pulling the guide wire 3. In the retracted position, the embolization device 5 is retracted into the outer sheath 4, and in the deployed position, the removal ...

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PUM

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Abstract

The invention provides intracranial vascular thrombus removal equipment comprising a thrombus remover, a guiding guide wire, a push-pull guide wire and an outer sheath pipe. The thrombus remover is connected with the push-pull guide wire, the mounted push-pull guide wire and the thrombus remover are pressed and held into the outer sheath pipe, the thrombus remover forms a pipe cavity and can be converted between a retrieving position and an unfolding position by the aid of pushing and pulling of the push-pull guide wire, the thrombus remover is retrieved into the outer sheath pipe at the retrieving position and pushed out of the outer sheath pipe at the unfolding position. The intracranial vascular thrombus removal equipment is characterized in that a certain number of 'barbs' inclining correspondingly to the pipe wall are arranged on the inner wall of the pipe cavity of the thrombus remover. According to the arrangement, the thrombus removal equipment can firmly fix thrombus during retrieving of the thrombus after being captured to have the capture stability improved, and falling off of the thrombus can be prevented.

Description

Technical field [0001] The invention relates to a medical device, in particular to a medical device for intervention in blood vessels, in particular to an intracranial blood vessel thrombus removal device. Background technique [0002] Acute ischemic stroke is nerve tissue damage caused by ischemic necrosis of local brain tissue due to sudden obstruction of blood flow in the brain. 70%~80% of patients with severe symptoms that require arteriography can see emboli or thrombus obstruction. The fatality rate of embolism of larger vessels is 53%~92%. [0003] Recanalization of blood vessels is the key to the treatment of acute ischemic stroke. The current conventional methods for treating acute ischemic stroke include two categories: interventional thrombolysis and mechanical thrombectomy. [0004] Interventional thrombolysis is the catheter injecting thrombolytic agent into the vicinity of the lesion in the blood vessel where the lesion is located, and a high concentration of thrombo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/2215
Inventor 罗七一刘建民黄清海徐庆顺谢志永金巧蓉王森徐晓红
Owner MICROPORT NEUROTECH SHANGHAI
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