Medical implant and plugging system

Abstract

The invention provides a medical implant and a plugging system. The plugging system comprises the medical implant, wherein the medical implant comprises a plugging part and an anchoring part; at least one end of the plugging part is connected with the anchoring part; at least part of the structure of the anchoring part has biodegradability; the plugging part of the medical implant is arranged at an opening of a target object so as to prevent a plug body in the target object from being separated from the opening; the anchoring part is arranged in a preset lumen with initial curvature and is used for keeping the plugging part at the opening; meanwhile, the anchoring part applies acting force to the preset lumen and changes the curvature of the preset lumen; and when the structure, with the biodegradability, of the anchoring part is at least partially degraded, the acting force is relieved, so that the preset lumen can be restored to the initial curvature. The medical implant can reduce or even eliminate the influence on the target lumen in the later period of implantation, so that the curvature of the target lumen can be restored.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical implant and a plugging system. Background technique [0002] According to statistics, the incidence of intracranial aneurysm in the general population is 3% to 5%, and the annual probability of aneurysm rupture in patients is about 0.95%. Once the aneurysm ruptures, the fatality rate is as high as 40%. Brain damage caused by aneurysms can alter the lives of patients and their caregivers, with the loss of quality of life and the cost of direct treatment placing a huge burden on society and the healthcare system. [0003] Intracranial aneurysms can be classified according to their size, shape, and location. When classifying by size, those with a size less than or equal to 10mm are called small aneurysms, those with a size of 10mm to 25mm are called large aneurysms, and those with a size greater than or equal to 25mm are called giant aneurysms. When classified by...

AI Technical Summary

Problems solved by technology

However, the general problem of these auxiliary stents is that they will change the original curvature of the blood vessel, causing the blood vessel to be straightened, thereby changing the fluid dynamics of the intracranial blood vessel

In addition, most of the auxiliary stents in the prior art indwell more metal structures in blood vessels, which can easily cause thromboembolism

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