Cerebral aneurysm micro-occlusion device

Abstract

The invention discloses a cerebral aneurysm micro-occlusion device. The cerebral aneurysm micro-occlusion device comprises a main occlusion device body, a filling liquid, a conveying pipe and a pushing catheter, wherein the main occlusion device body comprises a check valve; a liquid inlet end of the check valve sleeves a limit block; a liquid outlet end of the check valve sleeves a fluid blockingbody; the fluid blocking body comprises a biological gel material with elastic deformation performance; the filling liquid enters the fluid blocking body through the pushing catheter and the check valve. The components of the device have small dependence on the process size and are particularly applicable to micro cerebral aneurysms. The filling liquid enters the fluid blocking body through the pushing catheter and the check valve, so that the biological gel material with the elastic deformation performance is elastically deformed under the filling action of the filling liquid, and correspondingly the biological gel material expands and plays a role in blocking a cerebral aneurysm. The biological gel material is selected for making the fluid blocking material, has biological adhesion andcan successfully adhere to the cerebral aneurysm, so that the strength of the cerebral aneurysm is enhanced, and the rupture risk of the cerebral aneurysm is reduced.

Description

technical field [0001] The invention belongs to the technical field of interventional medical devices, and in particular relates to a cerebral aneurysm micro-occluder. Background technique [0002] Aneurysm is a common vascular disease, which is the result of expansion or bulging of the arterial wall due to lesion or injury of the arterial wall. According to the location of the aneurysm, it can be divided into peripheral aneurysm, abdominal aortic aneurysm, Thoracic aortic aneurysm, visceral aneurysm, cerebral aneurysm, etc. [0003] Cerebral aneurysm refers to a tumor-like protrusion of the arterial wall caused by the localized abnormal expansion of the inner cavity of the cerebral artery. It is a cystic aneurysm caused by local congenital defects of the cerebral artery wall and increased intracavitary pressure. bulging. That is to say, cerebral aneurysm is not a tumor in the true sense, but a cerebrovascular disease, but the blood vessel wall is weak, and a bubble has bu...

AI Technical Summary

Problems solved by technology

Even if the aneurysm with a slightly wide neck is assisted by a stent, the aneurysm embolized in the sac is likely to be displaced and cause cerebral infarction

Increased surgical difficulty and increased risk of aneurysm rupture

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