Novel intracranial aneurysm plugging device and manufacturing method thereof

Abstract

The invention relates to a novel intracranial aneurysm plugging device and a manufacturing method thereof. The plugging device comprises a plugging device body, developing marks, a conveying guide wire, a separation point, a conveying tube and a separator. The developing marks are fixed to the far end and the near end of the plugging device body respectively. The plugging device body is in a net shape woven by 24-72 strands of nickel-titanium memory alloy wires. After the plugging device is completed expanded, the developing marks are arranged at the far end and the near end respectively, andthe nickel-titanium memory alloy wires at the far end and the near end of the plugging device body are bundled and fixed through the developing marks respectively. The conveying guide wire is locatedin the conveying tube. The separation point is arranged between the developing mark at the near end of the plugging device body and the far end of the conveying guide wire. The near end of the conveying guide wire is connected with the separator. According to the manufacturing method of the plugging device, shaping is carried out through a plugging device mold. Under the is condition of not opening the skull, for large arterial aneurysm with the upper portion narrower than the lower portion and forky arterial aneurysm, the plugging device body is implanted, the plugging device is stable in structure, a tumor cavity can be fast and densely filled after the plugging device is expanded, and therefore flowing of blood in an arterial aneurysm cavity is retarded, the impact pressure of the bloodon the tumor cavity is reduced, the restoration capacity is enhanced, and the aim of treating the arterial aneurysm is achieved.

Description

technical field [0001] The patent of the present invention relates to a minimally invasive interventional therapy device, which belongs to the technical field of medical devices, and in particular to a device for sealing intracranial aneurysms through minimally invasive interventional means and a manufacturing method thereof. Background technique [0002] According to the guidelines for the prevention and treatment of cerebrovascular diseases in China, with the rapid development of my country's national economy in recent years, people's material living standards have also been greatly improved, seriously affecting the regularity of diet and life, and accompanied by the rapid aging of the population, At present, cerebrovascular-related diseases have become one of the main diseases that affect the health of middle-aged and elderly people in my country and threaten their lives. [0003] There are about 2 million new stroke patients (including hemorrhagic stroke and ischemic stro...

AI Technical Summary

Problems solved by technology

The high-density vascular stent design can play a role in the treatment of aneurysms, but because the braided metal wire is placed in the normal parent artery and covers part of the normal blood vessels, patients often need to take anticoagulation for life In order to avoid thrombosis in normal blood vessels, the dense mesh stent system of this invention needs a stable and normal blood vessel as the fixed section of the stent at the lesion site of the aneurysm in order to maintain the stability of the stent in the blood vessel, which limits the product. Clinical application

[0011] To sum up, there is currently no suitable treatment for intracranial aneurysms that are narrow at the top and wide at the bottom, giant aneurysms, and aneurysms in bifurcated vessels. A new type of minimally invasive interventional therapy for aneurysms is urgently needed clinically. The product, the occlusion device has a stable structure, and can quickly and densely fill the aneurysm cavity after deployment, thereby slowing down the flow of blood in the aneurysm cavity, reducing the impact pressure of blood on the aneurysm cavity, strengthening the repair ability, and achieving the purpose of treating aneurysms

Images