Hemangioma plugging device, hemangioma plugging treatment device and hemangioma plugging system

Abstract

The invention relates to a hemangioma plugging device, a hemangioma plugging treatment device and a hemangioma plugging system. The hemangioma plugging device comprises a net-shaped expansion structure and a positioning guide structure, wherein the net-shaped expansion structure has a plane vortex-shaped expansion state; the positioning guide structure has a three-dimensional spiral expansion state, after the hemangioma plugging device is expanded, one part of the positioning guide structure is spirally arranged in a central cavity of the plane vortex, and the other part of the positioning guide structure is located outside the plane vortex, so that positioning and guiding are carried out through the positioning guide structure, the whole device is stable, the device can be stably positioned in a tumor for a long time and is not easy to move, and a tumor cavity can be filled and stably supported through the net-shaped expansion structure. While realizing stable filling, the hemangioma plugging device also has the advantages of preventing the rupture of hemangioma, preventing vascular embolism, improving the coverage rate of the neck of the tumor, promoting the formation of thrombus in the tumor, accelerating the embolism of the hemangioma and the like.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a hemangioma blocking device, a hemangioma blocking treatment device and a hemangioma blocking system. Background technique [0002] Saccular aneurysms are the most common type of aneurysm, accounting for 80% to 90% of all intracranial aneurysms, and are the most common cause of nontraumatic subarachnoid hemorrhage (SAH), which, depending on the severity of the bleeding, can lead to Permanent neurological deficit or death. Currently, there are three main methods for the treatment of aneurysms: surgical clipping, coil embolization, and blood flow diversion devices. Among them, coil embolization and blood flow guiding device are endovascular interventional therapy, which can avoid the brain tissue and directly reach the lesion. The characteristics of minimal trauma make it the mainstream of the current treatment of intracranial aneurysms. [0003] Coil embolization is a m...

AI Technical Summary

Problems solved by technology

Moreover, the design of the riveting point at the distal end of the first type of embolization device has an impact on the aneurysm wall, which may easily lead to rupture of the aneurysm wall and bleeding of the aneurysm.

And in some cases, the proximal riveting point of the first embolization device will be squeezed by the aneurysm wall and herniate into the parent artery, affecting the endothelialization process of the aneurysm neck

In addition, the first type of embolization device is usually a single spherical or cylindrical device, although the contact area is large, but the supporting force is insufficient, the long-term stability in the tumor cavity is not good, and the device is easily displaced

The second type of embolization device is shaped into a three-dimensional network structure by multiple sheet-like networks, which is similar to a sphere. Due to the large friction between the three-dimensional network structures and between them and the tumor wall, the forming stability of the device in the tumor Not good, it is not easy to return to the predetermined shape, affecting the filling effect, and it needs to be used with spring coils, the operation is complicated

The proximal riveting point of the fourth type of embolization device is also easily squeezed by the tumor wall and herniated into the parent artery. It is suitable for apical aneurysms, and the position of the device needs to be adjusted repeatedly, otherwise the stability of the device in the tumor will be affected. ,low efficiency

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