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Thrombectomy device and medical device

A technology of expansion rods and auxiliary stents, which is applied in the field of medical devices and can solve problems such as poor thrombus capture effect

Pending Publication Date: 2021-09-28
苏州铨通医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This thrombectomy method mainly utilizes the radial extrusion and fit of the thrombus retrieval stent to capture the thrombus. When the radial force of the thrombus retrieval stent is insufficient, the effect of thrombus capture is poor. Hard massive thrombus, large cardiogenic white thrombus, or plaque thrombus with limitations beyond the treatment time window

Method used

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  • Thrombectomy device and medical device
  • Thrombectomy device and medical device
  • Thrombectomy device and medical device

Examples

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Embodiment Construction

[0033] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, ...

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Abstract

The invention provides a thrombectomy device and a medical device.The medical device comprises the thrombectomy device, the thrombectomy device comprises a pushing shaft, a thrombectomy stent and an auxiliary mechanism, and the thrombectomy stent is a self-expanding stent and fixedly connected to the far end of the pushing shaft; and the auxiliary mechanism is partially arranged in the thrombectomy stent and is used for applying radial outward expansion force to the thrombectomy stent, so that the thrombectomy stent can perform secondary expansion in the radial direction after self-expansion. A thrombus is captured by utilizing the thrombectomy device, and if the thrombus cannot be effectively captured due to insufficient radial force of the thrombectomy stent, the auxiliary mechanism can be utilized to apply the expansionary force to the thrombectomy stent, so that the thrombectomy stent is secondarily expanded, the radial force is enhanced, and the thrombus capturing effect is improved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a thrombectomy device and a medical device. Background technique [0002] Acute stroke is a common cerebrovascular disease, with sudden onset, rapid development, severe symptoms, high disability and fatality rates, and belongs to the acute and critical diseases of cerebrovascular diseases. Generally speaking, stroke can be divided into two types: hemorrhagic and ischemic, and the proportion of ischemic stroke can reach 70% to 80%. The pathogenesis of acute ischemic stroke is that thrombus or arteriosclerotic plaque detached from the diseased vessel wall causes acute occlusion of cerebral arteries, which in turn causes a series of physiological and pathological reactions such as inflammation and apoptosis in ischemic brain tissue. If the blood perfusion of the occluded cerebral artery is restored within a short period of time, the cell metabolism of the brain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22
CPCA61B17/22A61B17/22032A61B2017/22081
Inventor 王钰富扈聪王冲
Owner 苏州铨通医疗科技有限公司
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