Intravascular stent system having guiding function and implantation method thereof

Abstract

The invention provides an intravascular stent system having a guiding function. The intravascular stent system comprises a guiding head, a connecting part and a stent body. The guiding head comprises a framework spring, a bias spring and an accommodating cavity, wherein the bias spring is made from an SMA shape memory alloy, and the accommodating cavity is located in the rear end of the guiding head. The connecting part is coaxially connected behind the guiding head and comprises a guide wire and an air bag. The air bag is coaxially sleeved with the stent body. The invention also discloses a use method of the intravascular stent system. The use method comprises the steps of blood vessel implantation, bending of the guiding head towards the bias spring on the electrified side, air bag distraction at the focus part and guiding head recovery. The intravascular stent system has the advantages that an intravascular stent which can be placed at the front end of the guide wire or catheter and provided with the guiding head can complete guide control at the front end of the stent body; the intravascular stent has a guiding effect, so that the blood vessel operating difficulty is greatly reduced, the operation time is obviously shortened, the accuracy and safety of operating catheter intubation can be improved, and human body blood vessel injuries in the operating process can be also relieved.

Description

technical field [0001] The invention relates to the field of cardiovascular technology, in particular to a blood vessel stent system with a guiding function and an implantation method thereof. Background technique [0002] Cardiovascular disease has become the number one killer threatening the health of our people, and about 10,000 patients die of cardiovascular disease in our country every year. Coronary atherosclerotic heart disease, referred to as coronary heart disease, is the most important component of cardiovascular diseases. Coronary heart disease refers to severe atherosclerosis in the arteries supplying the heart's own blood, which narrows or occludes the coronary arteries, resulting in myocardial infarction. A heart attack with ischemia or infarction. [0003] Because the implanted stent can treat acute or near occlusion caused by balloon dilation, stent intervention can reduce the restenosis rate and improve the long-term prognosis of patients. The implanted ste...

AI Technical Summary

Problems solved by technology

The blood vessels in the human body are curved, irregular, and have branches in many places, which make the control of cannulation very difficult

Only relying on the experience of the operator to perform intubation brings a lot of accidents to the operation, and wrong and repeated operations will further cause damage to human blood vessels

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