Embedded controllable blood vessel shutting device

Abstract

The invention relates to an embedded controllable blood vessel shutting device. The device comprises a shell, an actuator and a control module, the shell can be freely opened or closed, and the bloodvessel can be partly contained or moved out of the shutting device when the shell is opened; the control module is used for providing electric energy and control signals for the actuator; the actuatoris located between an inner tube and the shell, and the actuator is powered on and can expand, deform and compress the blood vessel, so that the tube wall of the inner tube is deformed and then the blood vessel which is contained in the inner tube is compressed. The embedded controllable blood vessel shutting device is designed aiming at the requirements for treating intracranial aneurysm, skullbase neoplasms or other brain diseases and the defects of an existing method that the lesion blood supply internal carotid is cut off in advance. The device can be completely implanted into the humanbody and can wrap the blood vessel, and the internal carotid can be controllably and slowly shut. In the gradual shutting process, the brain tissue for blood supply of the internal carotid can obtaincompensatory blood supply of other blood vessels and get rid of the dependence of the internal carotid, cerebral infarction cannot be caused when the internal carotid is cut off, and conditions are created for disease treatment.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an embedded controllable blood vessel blocking device. Background technique [0002] The incidence of intracranial aneurysms is 0.4%-3.6%, of which about 10% are giant aneurysms (such as giant supraclinoid aneurysms). Aneurysms are at risk of rupture, which can be life-threatening, so aggressive surgery is necessary. However, due to the large size of giant aneurysms, interventional embolization and surgical clipping cannot be performed, so the treatment is very difficult. The current treatment strategy is usually to block the internal carotid artery first, and then perform aneurysm isolation and bypass surgery. [0003] Huge skull base tumors surrounding the internal carotid artery. The tumor is closely related to the internal carotid artery, and it is difficult to separate it. During the process of tumor resection, the internal carotid artery and its branches are d...

AI Technical Summary

Problems solved by technology

However, this method can only perform short-term, one-time vascular occlusion (30 minutes), and cannot achieve a long-term slow vascular occlusion process, and there is still a risk of thrombosis

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