Implantable controllable blood vessel locking device

Abstract

The invention relates to an implantable controllable blood vessel locking device. The implantable controllable blood vessel locking device comprises a shell, an actuator and a control module, whereinthe shell accommodates the blood vessel and carries the actuator and the control module; the control module provides electric energy and a control signal for the actuator; the actuator comprises sliderails, a roll shaft and an electrical activity polymer material, after electrifying, the electrical activity polymer material deforms and stretches along the slide rails, so that the roll shaft is compressed to move along the slide rails, and the roll shaft extrudes the blood vessel, so that the blood vessel is gradually locked. The implantable controllable blood vessel locking device is designedaiming at the demand of treating intracranial aneurysm, basicranial tumor or other brain diseases, and the defects in the existing methods that lesion blood-supply internal carotid is blocked in advance before treatment. The device can be completely implanted in the body, wrap the blood vessel, and slowly lock the internal carotid in a controlled manner, so that the blood-supply brain tissue of internal carotid can obtain compensatory blood supply of other blood vessels, the dependence on the artery is eliminated, then the internal carotid is cut off, so that cerebral infarction can not be caused, 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 implantable 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 ar...

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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