Thrombectomy stent with barbs for enhancing capture force

A grid cell, figure-8 technology, used in medical science, surgery, etc., can solve the problems of insufficient thrombolysis effectiveness and unsatisfactory treatment effect of large-volume thromboembolism, achieve good distal protection effect, and reduce thrombus missed. , safe to use

Pending Publication Date: 2020-09-18
EASYCESS MEDICAL LTD
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Problems solved by technology

[0004] The disadvantages of drug thrombolysis are: it is only suitable for small thrombus, and the treatment effect on large-volume thromboembolism is not ideal. Only about 3-5% of patients are suitable for drug throm

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  • Thrombectomy stent with barbs for enhancing capture force
  • Thrombectomy stent with barbs for enhancing capture force
  • Thrombectomy stent with barbs for enhancing capture force

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings, embodiments, and modifications. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] In order to more clearly describe the structure of the stent product disclosed in the present invention, the meanings of the two concepts of "distal end" and "proximal end" are defined here, and the above concepts are commonly used terms in the field of interventional medical devices. Specifically, "distal end" means the end away from the operator during the operation, and "near end" means the end close to the operator during the operation. Of course, for a single device object, the "near end" can also be described as the end close to the operator, and the "distal end" can...

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Abstract

The invention discloses a thrombectomy stent with barbs for enhancing capture force. The thrombectomy stent comprises a mesh cage formed by an elastic wire mesh in a curly shape; the elastic wire meshcomprises a plurality of elastic wires; the elastic wires intersect with one another to form a plurality of grid units; the formed grid units include a plurality of 8-shaped grid units; an inward circuitous part is arranged in the middle of each of two sides of each 8-shaped grid unit in the width direction; the inward circuitous part of at least one 8-shaped grid unit extends to form an extension wire; the two extension wires are intersected to form a capture unit; and the tail end of the capture unit can be provided with a developing point/developing block by welding. The invention aims toprovide the thrombectomy stent with the barbs for enhancing the capture force, which is used for more reasonably enhancing the capture effect on thrombus, and can enhance the supporting strength for preventing the mesh cage from prematurely collapsing and deforming due to bending force.

Description

technical field [0001] The invention belongs to the field of interventional treatment instruments, and in particular relates to a thrombectomy bracket with barbs for enhanced grasping force. Background technique [0002] Cerebral stroke is an ischemic stroke caused by thrombus in the blood vessels of the brain. The blood flow of the local blood supply arteries of the brain tissue is suddenly reduced or stopped, resulting in ischemia and hypoxia of the brain tissue in the blood supply area of ​​the blood vessels, resulting in necrosis and softening of the brain tissue, and Accompanied by clinical symptoms and signs of corresponding parts, such as hemiplegia, aphasia and other symptoms of neurological deficit. [0003] At present, the clinical treatment of ischemic stroke mainly adopts drug thrombolysis and mechanical thrombectomy. [0004] The disadvantages of drug thrombolysis are: it is only suitable for small thrombus, and the treatment effect on large-volume thromboembol...

Claims

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Application Information

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IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/2215
Inventor 王昂王仕林
Owner EASYCESS MEDICAL LTD
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