Intracranial aneurysm interventional closure treatment device

Abstract

The invention relates to an intracranial aneurysm interventional closure treatment device. The intracranial aneurysm interventional closure treatment device includes a closure device, a delivery device, and a closure device fixing frame; the closure device fixing frame is circular tube-shaped, and the wall of the circular tube is of a multi-hole net structure; the closure device includes a closure device outside-aneurysm part, a closure device fixing part, and a connection part connecting the closure device outside-aneurysm part and the closure device fixing part; the closure device outside-aneurysm part is a disc-shaped closure piece and tightly attaches to the inner wall of a support or the inner wall of a blood vessel; the closure device fixing part is a circular table-shaped closure piece which tightly attaches to the closure device fixing frame; and a far end of the closure device outside-aneurysm part contracts inward and is connected to the closure device fixing part. During closure, the connection part of the closure device is embedded into net holes of the closure device fixing frame, the closure device fixing part is positioned outside the wall of the closure device fixing frame, and the closure device outside-aneurysm part is positioned inside the wall of the closure device fixing frame. The closure treatment device can achieve complete cover of an aneurysm neck, induce thrombosis in the aneurysm, and achieve complete embolism of the aneurysm.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an interventional closure treatment device for intracranial aneurysms. Background technique [0002] Intracranial aneurysm refers to a tumor-like lesion formed by the outward protrusion of the intracranial artery wall caused by various factors. It is the first cause of subarachnoid hemorrhage and the third cause of cerebrovascular diseases. The mortality rate and disability rate accounted for 22%-25% of the patients who died of cerebrovascular disease, and showed a gradually increasing trend. The incidence of intracranial aneurysms is relatively high. The survey results show that congenital aneurysms account for most of the population, and the most common ones are 40-66 years old. About 10% of patients die before admission, and the autopsy detection rate is about 1-5. %, the first hemorrhage mortality rate of ruptured aneurysm is about 15%-20%, and the mortality rate wit...

AI Technical Summary

Problems solved by technology

The basic principle of the above-mentioned patented technology is to use the occlusion part located in the cavity of the aneurysm to clamp the occluder at the neck of the aneurysm and fix the occluder. Irregular aneurysms where the device does not effectively hold the occluder at the neck of the aneurysm

Secondly, aneurysm rupture during interventional therapy is one of the most serious complications in the treatment process. According to domestic reports, the incidence of aneurysm rupture during operation is 0.70%-4.17%, and the fatality rate is 8.3%-50.0%. The above-mentioned patented technology The occluder is fixed at the neck of the aneurysm by using the part located in the cavity of the aneurysm. In this case, the part located in the cavity of the aneurysm is bound to fit closely with the wall of the aneurysm, causing an impact on the wall of the aneurysm. Compression which increases the risk of aneurysm rupture

Therefore, in view of the shortcomings of the prior art, there is an urgent need for an interventional occlusion treatment device that will not cause extrusion or expansion of the aneurysm wall after being inserted, and about this device, there is no report yet

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